(DWC) Slightly smelly rez & salt buildup?

Hi guys&girls,

My first dwc run after lots of soil & coco runs is into its 3rd week now with 2x blueberry-OG seedlings from barneys that I germinated in root riot starter cubes.

Transplanted into a 2planter system 70L max 10 days after sprout.

Plants gave been in the system now for 10days making them 20 days from sprout.

I filled the rez with RO water to the bottom of the net pots the gave a mild CANNA START solution
PH 5.6
PPM [email protected]

I'm veging using 2x marshydro300 total watts from the wall 280 ' hanging them 24" from the plants
Water temp set to 18c with a 3c drift
Room temp 24c/27c night 18c/22c
Humidity 30%/50%

Topping of with 50/50 tap/RO

I've done 1 rez change so far ' cleaning with h202 then filling with RO water ph 5.6 ppm [email protected]

Since I done a rez change I've noticed white salt build up all over the bottom of the top tray what holds the plants? Also on the airlines too?

There is a slightly fish tank kind of smell that doesn't smell bad but doesn't smell good lol

I've been using a product called SILVER BULLET ROOTS and it said it should be good in your rez for up to 5wks as a h202 replacement?

Here is some picks...View attachment 4107175 View attachment 4107177 View attachment 4107178 View attachment 4107179 View attachment 4107180 View attachment 4107184

The plant haven't reacted bad to the hike in ppm from 300 to 600 but maybe it's too much nutrients in the rez causing all that salt build up?

I'm doing a full rez change and cleaning the rez and stones/airline's with some h202 ' rinsing with walm water then refill with 50/50 tap/RO with a EC of 0.1 then add 400ppm of DUTCH MASTERS GOLD RANGE ONE GROW 1-0.7-3
PH set to 5.6
Let it drift to 6.3 over the next day or too then top off and adjust ppm to 500?

Sound OK guys or am I missing something?

Your TDS are too high for plants that young.

You'll end up with salt buildup on equipment during your grows. In between grows you'll clean all that up, and sterlize with bleach. During the grow you can just wipe it off with a wet rag if it bugs you.

Your water temps are pretty chilly. Try not to let it go too far below 18c/66f, and not much above 21c/72f

Bad smelling water is an indicator that something's going on, most likely from the roots. You should flush with tap. Try this:

1. Drain system
2. Fill to bottom of net pots with tap water and let run for around 30 minutes
3. Drain
4. Fill with plain RO and run for a few hours
5. Add 180ppm nutes, and then keep an eye on them. If signs of deficiency appear, raise TDS with nutes, 50ppm at a time.

Your plants look nice and healthy, so you probably just need to flush and bring your TDS down.

that fish tank smell is definitely coming from the net pot even a few roots are turning brown so'I rinsed the res out with some 11.9%h202 then filled with RO water, dose of 40ml of silver bullet roots for preventative measures as directed on the bottle, let the res run for 4hours then added 400ppm of grow nutes and ph to 5.7

Hopefully that smell goes away now? I've even layer some mylar on the top to stop light leaks through the net pots and sides of the res.

Waterline is couple inches below the net pot and the res i's full to 55litres

kaydeezee said:

that fish tank smell is definitely coming from the net pot even a few roots are turning brown so'I rinsed the res out with some 11.9%h202 then filled with RO water, dose of 40ml of silver bullet roots for preventative measures as directed on the bottle, let the res run for 4hours then added 400ppm of grow nutes and ph to 5.7

Hopefully that smell goes away now? I've even layer some mylar on the top to stop light leaks through the net pots and sides of the res.

Waterline is couple inches below the net pot and the res i's full to 55litres

Click to expand...

You might want to gently remove the plant and Hydroton, rinse off the roots in the sink, and replant with clean Hydroton. I'm not sure you'd be able to resolve the problem without getting to the roots, since it's in the Hydroton.

When replanting, just hold the plant in the center of the netpots with one hand and fill the Hydroton with the other. You can curl the excess roots at the bottom of the netpots.

The light leaks might be causing algae or something, to grow.

kaydeezee said:

that fish tank smell is definitely coming from the net pot even a few roots are turning brown so'I rinsed the res out with some 11.9%h202 then filled with RO water, dose of 40ml of silver bullet roots for preventative measures as directed on the bottle, let the res run for 4hours then added 400ppm of grow nutes and ph to 5.7

Hopefully that smell goes away now? I've even layer some mylar on the top to stop light leaks through the net pots and sides of the res.

Waterline is couple inches below the net pot and the res i's full to 55litres

Click to expand...

are you doing some kind of top feed? if not, take the net pots out and dunk them repeatedly in the res and get that silver bullet way up in the netpot all the way to the stem.
i read the website for the sbr: i'm curious how they get something that lasts 5 weeks.

After 5days of watching my 2 baby BLUE OG''s from barney's wilt/smell/tip burn & N toxicity, I got home from work and was like right' I'm taking everything out and cleaning the lot!!

I cleaned every inch of the res with bleach then with h202 then a fresh water rinse before setting it all back up and running fresh water through the system before placing the plants back inside the res.

I made a solution for h202 and dunked the net pots init a couple times each before placing the plants back in the res

Purchased a humidifier that's now running in the corner of the tent and I think it's helped massively!! Humidity has gone from 20s to 60s

I also fixed some black'n'white sheeting rolled up into strips all around the edges of the res so when the lid goes back on it makes a tighter seal, made a cardboard top lid to stop heat and light from hitting the res and even though it's only been 12hours the plants look amazing considering I thought they were on the verge of death lol

FINAL CONCLUSIONS

a full res change and deepnclean seems to have done the trick along with a few adjustments like adding another 2 4" ceramic airstone's/humidifier and sorting out the light leaks?

Water temp19c to 21c
Room temp 23c to 26c
Humidity 50% to 70%

Ph is set to 5.7
Ppm is set to 400 @.5

Preventative dose of (SBR)h202 = 40ml
Calmag pro =15ml
Grow nutes =80ml

BEFORE THE RES CHANGE



AFTER THE RES CHANGE AND CLEANUP

Check out the salt from the spray in the tote, created by the waterfall! Its all caked on the waterfall pipes too, but you can't see it in the pic. After the grow, it all wipes off easily with dish soap and a sponge. The buildup you see on your equipment is minimal to the salt and slime buildup inside pipes and pumps. I recommend that you break down your system as far as it will go, between grows, and clean everything thoroughly. After cleaning, sterilize everything with bleach mix. This really helps prevent problems with your water and plants.

JSB99 said:

Check out the salt from the spray, created by the waterfall! Its all caked on the waterfall pipes. After the grow, it all wipes off easily with dish soap and a sponge. The buildup you see on your equipment is minimal to the salt and slime buildup inside pipes and pumps. I recommend that you break down your system as far as it will go, between grows, and clean everything thoroughly. After cleaning, sterilize everything with bleach mix. This really helps prevent problems with your water and plants.

View attachment 4110136

Click to expand...

This was a lesson learned, I won't be lazy in the future when it comes to 'sterile environment 'I plan on doing a res change every 7/10 days if all is well and then in flower every 5/7 days

I don't have any fountain affect at the moment but I do have 8 airstones throwing out almost 35 lpm of o2 so I'm going to see if that will be enough for now? If not' I expect I will purchase a more powerful pump like the enviro-et 60lpm pump that runs almost silent at 30DB

was going to buy 4x 6" ceramic airstones for my 70litre 2 planter system, almost 1litre of o2 for 1litre of h2o

kaydeezee said:

This was a lesson learned, I won't be lazy in the future when it comes to 'sterile environment 'I plan on doing a res change every 7/10 days if all is well and then in flower every 5/7 days

I don't have any fountain affect at the moment but I do have 8 airstones throwing out almost 35 lpm of o2 so I'm going to see if that will be enough for now? If not' I expect I will purchase a more powerful pump like the enviro-et 60lpm pump that runs almost silent at 30DB

was going to buy 4x 6" ceramic airstones for my 70litre 2 planter system, almost 1litre of o2 for 1litre of h2o

Click to expand...

The waterfall alone will add enough DO to the roots, but my pump is undersized for my system to be an Under Current. I need about 1000gph pump, but I've only got a 400gph pump right now. Because of the decreased current, the flow is not enough to get that DO to the center of the roots. The stones aren't necessarily to add more DO as much as it's about delivering that DO to the center of the roots.

It also adds a level of redundancy. If one of my pumps go out, the other will keep things going until the replacement comes.

People were right when they said growing DWC plants would throw up some problems you will have to act fast on and' I think I may have solved my second big problem, drooping plants again after u topped up?

My water line is far to high ' first I had it just touching the net pots then lowered it as the roots grew and I noticed that when the water line is lower they don't droop so I'm going to remove some water from the res and keep a waterline about 2" from the bottom of the pots and see how that goes? I'm sure it's problem solved? I was over watering in a DWC way by to high of a water line.

MY UNDERSTANDING IF WATERLINE LEVEL.

When the plants are young and NO roots are showing 'it is good to have the waterline up a inch or so to feed the young roots in the net pots.

When some roots start showing out of the net pots 'lower the waterline a little bit but' still tountching the net pot.

When the roots are as long as the net pot itself' you should lower the waterline to below the net pot to encourage roots to stretch down further to locate the nutrient water

When you have a mass of roots like when people refer to the (ROOTBALL) the water line should be a inch or two upove the mass if the rootball at the bottom of the bucket.

I cnow there is lots of posts out there with this information but' also lots of different methods but this one is what I have experienced from watching my plants this past 7days go through some problems.

The moment I did a res change and cleaned everything my plant bounced back? The waterline was a lot lower than when I first empty the res, it went from just touching the net pot to several inches below and the plants looked great in only 6/12 hours later.

The moment I over topped up the water and raised the waterline a little the plants drooped?

Concluding that plants need o2 in the water and also in the surrounding environment to fully grow without drooping problems.

Let you all know how it all turns out along the way

Just thought I would post a few pictures if my plants looking sad after topping up with too much water...


These pictures I are of the current later line at 60L of a 70L max res, in other words ' 70L would be just touching the bottom of the net pots. the roots are actually about 1 & 1/2 feet long it's just submerged under the water.

I have 32lpm of air in the tank from 3x airpumps with 8x airstones so 60L of water & 32lpm of air is a good amount of 02 so that's definitely not the droop problem
Res temp are 18c to 20c
Room temp is 23c to 27c
Humidity is 40% to 60%
Ph is steady at 5.7 and takes 24hours to rise to 6.3 then I ph back down to 5.7.
Ppm is 350/400.
1/4 dose of calmag .
1/4 dose of veg nuts.
No light leaks.only conclusion is (WATERLINE) IS TOO HIGH AND NEED TO BE LOWERED EVEN MORE THAN 2" POSSIBLY?

I love dutch master zone straight from their website. Also keep your res Around 68

DrdankPHD said:

I love dutch master zone straight from their website. Also keep your res Around 68

Click to expand...

I'm starting to see the benefits of using the SILVER BULLET ROOTS

My plants roots have almost doubled in size the past couple days with pure white being very pro dominate in the root zone.

Plants leaves are on the mend! Well ' the ones that wasn't completely damaged early on.

Raising! the water line back to underneath the net pot at full res 70L seams to have done Trick?

I also purchased another AIRPUMP rated at 1200lph so now I will have 2400lph or 40lpm of o2 being pumped in to the rootzone of a 70litre res that's filled to 65litres , more than enough 02 now?
I have another couple smaller pumps that's on standbye if anything goes wrong with these new ones.

I have a chiller hooked up so keeping res temp at a percific range isn't difficult 65f to 68f is my range and it always stay right in the range

I jumped from 5x successful soil grows with mixed lighting&setups then try ed coco/perlite mix but found' without a drip system in place I was constantly watering in mid flower and that dine my head in coming home from a hard day work to spend a hour mixing nutes and catching runoff lol so after 8x grows in thought ,why not try HYDRO (DWC)

I've never lost a plant or a seedling from anything I have done I've always manages to save & fix any problems because I constantly take photo's and read every bit if growing knowledge that's shared on the net.

I'm restricted to a 2x4x6 grow tent so' I'm attempting to make my setup for 2 giant plants the best! It could be?

I have everything the plants need to achieve this goal apart from the experience of DWC/hydro growing lol

I'm planning in topping the shuit out if these 2 blueberry OG's from barney farm now that the root problems are over

I was going to top them at the 3rd 4th none but that's going to involve chopping half the plants top away to achieve this goal since the plants have continued to grow despite! The root problems early on.
Do you have any tips you would like to share with me about training plants in DWC?

kaydeezee said:

I'm starting to see the benefits of using the SILVER BULLET ROOTS

My plants roots have almost doubled in size the past couple days with pure white being very pro dominate in the root zone.

Plants leaves are on the mend! Well ' the ones that wasn't completely damaged early on.

Raising! the water line back to underneath the net pot at full res 70L seams to have done Trick?

I also purchased another AIRPUMP rated at 1200lph so now I will have 2400lph or 40lpm of o2 being pumped in to the rootzone of a 70litre res that's filled to 65litres , more than enough 02 now?
I have another couple smaller pumps that's on standbye if anything goes wrong with these new ones.

I have a chiller hooked up so keeping res temp at a percific range isn't difficult 65f to 68f is my range and it always stay right in the rangeView attachment 4112584 View attachment 4112585

I jumped from 5x successful soil grows with mixed lighting&setups then try ed coco/perlite mix but found' without a drip system in place I was constantly watering in mid flower and that dine my head in coming home from a hard day work to spend a hour mixing nutes and catching runoff lol so after 8x grows in thought ,why not try HYDRO (DWC)

I've never lost a plant or a seedling from anything I have done I've always manages to save & fix any problems because I constantly take photo's and read every bit if growing knowledge that's shared on the net.

I'm restricted to a 2x4x6 grow tent so' I'm attempting to make my setup for 2 giant plants the best! It could be?

I have everything the plants need to achieve this goal apart from the experience of DWC/hydro growing lol

I'm planning in topping the shuit out if these 2 blueberry OG's from barney farm now that the root problems are over

I was going to top them at the 3rd 4th none but that's going to involve chopping half the plants top away to achieve this goal since the plants have continued to grow despite! The root problems early on.
Do you have any tips you would like to share with me about training plants in DWC?

Click to expand...

It's great that you're seeing vast improvements in your plant. However, I think what you've done is gotten some things fixed and your plant is growing normally. With standard nutes and all my levels in check, I see up to 3" - 4" growth in a single day. This is normal with DWC. I don't know if any if the stuff you're adding to your soup is doing all that much.

With DWC, explosive growth is expected, as long as conditions are optimal for the plants. Ultimately, you want to be able to grow properly, without having to depend on additional additives to keep things healthy. I think healthy plants will outgrow unhealthy plants with lots of chemicals added to them. The same goes for all the extra hardware you're trying to use to resolve the issues.

If you take a look at my DWC, I use a single 400gph water pump, a 70lpm air pump, GH Maxi grow/bloom nutes (no mixing at all), and 68 degree pH balanced water. That's it. Using my go to example, if you're just starting to learn how to play guitar, stacks of amps and rows of pedals won't make you sound better. Only practice and experience is going to help.

Check out my thread on Bonsai Mums. I top my plants in half after about 5 or 6 nodes. It's unnerving chopping your plants in half, but they're very resilient! I'd wait until you have 5 or 6 nodes.

kaydeezee said:

I'm starting to see the benefits of using the SILVER BULLET ROOTS

My plants roots have almost doubled in size the past couple days with pure white being very pro dominate in the root zone.

Plants leaves are on the mend! Well ' the ones that wasn't completely damaged early on.

Raising! the water line back to underneath the net pot at full res 70L seams to have done Trick?

I also purchased another AIRPUMP rated at 1200lph so now I will have 2400lph or 40lpm of o2 being pumped in to the rootzone of a 70litre res that's filled to 65litres , more than enough 02 now?
I have another couple smaller pumps that's on standbye if anything goes wrong with these new ones.

I have a chiller hooked up so keeping res temp at a percific range isn't difficult 65f to 68f is my range and it always stay right in the rangeView attachment 4112584 View attachment 4112585

I jumped from 5x successful soil grows with mixed lighting&setups then try ed coco/perlite mix but found' without a drip system in place I was constantly watering in mid flower and that dine my head in coming home from a hard day work to spend a hour mixing nutes and catching runoff lol so after 8x grows in thought ,why not try HYDRO (DWC)

I've never lost a plant or a seedling from anything I have done I've always manages to save & fix any problems because I constantly take photo's and read every bit if growing knowledge that's shared on the net.

I'm restricted to a 2x4x6 grow tent so' I'm attempting to make my setup for 2 giant plants the best! It could be?

I have everything the plants need to achieve this goal apart from the experience of DWC/hydro growing lol

I'm planning in topping the shuit out if these 2 blueberry OG's from barney farm now that the root problems are over

I was going to top them at the 3rd 4th none but that's going to involve chopping half the plants top away to achieve this goal since the plants have continued to grow despite! The root problems early on.
Do you have any tips you would like to share with me about training plants in DWC?

Click to expand...

Couple other things:

• Raising the water level to right under the netpots probably didn't make a noticeable difference. You're probably associating the improved health on something else. After the roots have come out of the netpots, you can lower the water level a few inches. Not all of the roots need to be submerged. When I hit flower, my containers are only 1/2 to 2/3 full.
• You are going overboard on your pumps. Your plants won't be effected by the flow, but those big pumps are going to be generating a good amount of heat, which is going to warm up your water. Granted, you've got a chiller, but you're going to be making equipment do much more than needed.
• You should let your little ones grow out another week before topping. Let them fill out some more so that it has more leaf surface to collect energy, and recover more quickly

JSB99 said:

Couple other things:

• Raising the water level to right under the netpots probably didn't make a noticeable difference. You're probably associating the improved health on something else. After the roots have come out of the netpots, you can lower the water level a few inches. Not all of the roots need to be submerged. When I hit flower, my containers are only 1/2 to 2/3 full.
• You are going overboard on your pumps. Your plants won't be effected by the flow, but those big pumps are going to be generating a good amount of heat, which is going to warm up your water. Granted, you've got a chiller, but you're going to be making equipment do much more than needed.
• You should let your little ones grow out another week before topping. Let them fill out some more so that it has more leaf surface to collect energy, and recover more quickly

Click to expand...

Thanks for the info my friend 'much appreciated, so how does this water level thing actually go? I mean' I've got a 70litre res that just about under the net pot when full but I'm not sure when and how much to drop the level by? I had the water level at 50litres what was about 2" under the net pot and my plants were droopy over night?
Once I raised the water level to back just under the net pot the plant came back alive over night once again?
I'm currently putting in my res 200ppm tap water
50ml silver bullet roots (h202)
400ml DM gold range gro
Ph set 5.7
Ppm 550
Water temp set 65f to 68f

kaydeezee said:

I'm starting to see the benefits of using the SILVER BULLET ROOTS

My plants roots have almost doubled in size the past couple days with pure white being very pro dominate in the root zone.

Plants leaves are on the mend! Well ' the ones that wasn't completely damaged early on.

Raising! the water line back to underneath the net pot at full res 70L seams to have done Trick?

I also purchased another AIRPUMP rated at 1200lph so now I will have 2400lph or 40lpm of o2 being pumped in to the rootzone of a 70litre res that's filled to 65litres , more than enough 02 now?
I have another couple smaller pumps that's on standbye if anything goes wrong with these new ones.

I have a chiller hooked up so keeping res temp at a percific range isn't difficult 65f to 68f is my range and it always stay right in the rangeView attachment 4112584 View attachment 4112585

I jumped from 5x successful soil grows with mixed lighting&setups then try ed coco/perlite mix but found' without a drip system in place I was constantly watering in mid flower and that dine my head in coming home from a hard day work to spend a hour mixing nutes and catching runoff lol so after 8x grows in thought ,why not try HYDRO (DWC)

I've never lost a plant or a seedling from anything I have done I've always manages to save & fix any problems because I constantly take photo's and read every bit if growing knowledge that's shared on the net.

I'm restricted to a 2x4x6 grow tent so' I'm attempting to make my setup for 2 giant plants the best! It could be?

I have everything the plants need to achieve this goal apart from the experience of DWC/hydro growing lol

I'm planning in topping the shuit out if these 2 blueberry OG's from barney farm now that the root problems are over

I was going to top them at the 3rd 4th none but that's going to involve chopping half the plants top away to achieve this goal since the plants have continued to grow despite! The root problems early on.
Do you have any tips you would like to share with me about training plants in DWC?

Click to expand...

kaydeezee said:

I'm starting to see the benefits of using the SILVER BULLET ROOTS

My plants roots have almost doubled in size the past couple days with pure white being very pro dominate in the root zone.

Plants leaves are on the mend! Well ' the ones that wasn't completely damaged early on.

Raising! the water line back to underneath the net pot at full res 70L seams to have done Trick?

I also purchased another AIRPUMP rated at 1200lph so now I will have 2400lph or 40lpm of o2 being pumped in to the rootzone of a 70litre res that's filled to 65litres , more than enough 02 now?
I have another couple smaller pumps that's on standbye if anything goes wrong with these new ones.

I have a chiller hooked up so keeping res temp at a percific range isn't difficult 65f to 68f is my range and it always stay right in the rangeView attachment 4112584 View attachment 4112585

I jumped from 5x successful soil grows with mixed lighting&setups then try ed coco/perlite mix but found' without a drip system in place I was constantly watering in mid flower and that dine my head in coming home from a hard day work to spend a hour mixing nutes and catching runoff lol so after 8x grows in thought ,why not try HYDRO (DWC)

I've never lost a plant or a seedling from anything I have done I've always manages to save & fix any problems because I constantly take photo's and read every bit if growing knowledge that's shared on the net.

I'm restricted to a 2x4x6 grow tent so' I'm attempting to make my setup for 2 giant plants the best! It could be?

I have everything the plants need to achieve this goal apart from the experience of DWC/hydro growing lol

I'm planning in topping the shuit out if these 2 blueberry OG's from barney farm now that the root problems are over

I was going to top them at the 3rd 4th none but that's going to involve chopping half the plants top away to achieve this goal since the plants have continued to grow despite! The root problems early on.
Do you have any tips you would like to share with me about training plants in DWC?

Click to expand...

Res temps are critical. Personally I tried benificals eh didn't really work when u got rot. I try to keep sterile res. I alterate between dutch masterzone and and sm90 keep lines clear.

Also keeping the tenet clean important.

So I wipe down and loose dead leaves and dirt. Either use alchol or h2o2 3 pct.

Supplement with uva uvb reptile lights kill and mold. Leave it on for 5 hours.

I don't use air stones I think they harbor bad stuff. I tend to run hose and have another pump do a do a water fall affect I think u get more DO. Less issues with air stones.

Pretty much they grow crazy. Top off ph water.

Also get EC or PPM meter

kaydeezee said:

Thanks for the info my friend 'much appreciated, so how does this water level thing actually go? I mean' I've got a 70litre res that just about under the net pot when full but I'm not sure when and how much to drop the level by? I had the water level at 50litres what was about 2" under the net pot and my plants were droopy over night?
Once I raised the water level to back just under the net pot the plant came back alive over night once again?
I'm currently putting in my res 200ppm tap water
50ml silver bullet roots (h202)
400ml DM gold range gro
Ph set 5.7
Ppm 550
Water temp set 65f to 68f

Click to expand...

The water level isn't all that critical, AFAIK. You can just let it drop over time. You'll figure out where you like it over time. More water helps keep levels stable, so you may not want to drop it too much.

Your TDS looks good. As time goes on, bump it up a little by adding a small scoop of nutes every few days or so, with a meter as a guide.

Things are definitely stable "finally lol

I haven't made things easy fro myself to be honest, first I modified my tub to take a drip system' then I drilled permanent holes for the chiller! So all on all I had my work cut out just figuring out the method I was going to use.

Choosing to use seeds not clones I also made my work difficult for obvious reasons? Both plants are growing at different speed and have slight pheno traits in the leaves from what I can tell.

If I'm only topping off with ph water how do I bump up nutes before I do a res change?

Do in just add 1/4 nutes to the top up water ph then add to the res?

What flowering nutrients should I get?
I haven't got anything yet but I was going to go with sensi bloom & grotek monster bloom?

Ay yai yai, you're really wet behind the ears with hydro LOL! j/k

kaydeezee said:

Choosing to use seeds not clones I also made my work difficult for obvious reasons?

Click to expand...

What medium did you grow your seed in?

kaydeezee said:

If I'm only topping off with ph water how do I bump up nutes before I do a res change?

Do in just add 1/4 nutes to the top up water ph then add to the res?

Click to expand...

Your plants are going to take in the nutes, which is going to drop the TDS over time, as well as when you add water. You just add some nutes to the soup as it drops. The amount you add is going to depend on many things. You'll figure out how much you need to use to bring your soup to the target tds.

kaydeezee said:

What flowering nutrients should I get?

Click to expand...

I love GH Maxi Gro and Maxi Bloom! It is so easy to use, and is all you need! Follow the GH Maxi Series Recirculating Feed Chart. Very easy to use!

My current grow on nothing but Maxi Gro and Maxi Bloom: