please help with plant issue, its not detrimental but cant get this to stop

[thedudeabides157]

This is my first go at DWC. 10 plants in individual 5 gal buckets. Im in process of building a setup to transfer them into a recirculating system. Just having a yellowing issue. They are still growing like crazy but just not as happy as they should be
PH between 5.7 and 6.0 throughout all buckets
Running General Hydroponics..went with 2-1-1 ratio (treaspoons per gallon) using their floragro, micro, and bloom
2 teaspoons of cal-mag per gallon
Between 900-1000 ppm
Water temp is at 63F-64F
Room temp is 64F with 32% humidity
Running 8 band T5
Each bucket has great aeration
No slime on roots
I have new RO filters and membrane on the way if that could be an issue but my 55 gal reservoir was testing at 5ppm so i figured RO system was working great. They did sit for about 6-8 months without being used. I took them apart and cleaned before using. Well water by the way

 

[rkymtnman]

2 teaspoons of cal-mag per gallon

10mL per gallon seems way too much. what is recommended dosage on your bottle?

Room temp is 64F

increase to 75F

900 to 1000ppm seems too high as well. i only run max 1.2EC

 

[thedudeabides157]

10mL per gallon seems way too much. what is recommended dosage on your bottle?


increase to 75F

900 to 1000ppm seems too high as well. i only run max 1.2EC

Sorry that was a typo, running 1 teaspoon per gallon so each bucket gets about 3 teaspoons of calimagic. I was curious if the low environmental temps were causing this. Moving them to room with 4 dimmable 1000 watt, room temp will be much easier to control in there..in line cooling with split ac and heater

 

[thedudeabides157]

10mL per gallon seems way too much. what is recommended dosage on your bottle?


increase to 75F

900 to 1000ppm seems too high as well. i only run max 1.2EC

I'll drop the dosage on reservoir and get temps up, hopefully does the trick. Thanks

 

[rkymtnman]

Sorry that was a typo, running 1 teaspoon per gallon so each bucket gets about 3 teaspoons of calimagic. I was curious if the low environmental temps were causing this. Moving them to room with 4 dimmable 1000 watt, room temp will be much easier to control in there..in line cooling with split ac and heater

yeah, 64F is pretty low. that would be a great lights off temp.

the other thing i'd research is your 2-1-1 mix of the flora series. there is a chart that airwalker puts up that seems to work for that series. is that what the GH feedchart recommends?.

 

[rkymtnman]

that's why i dont like cal/mg unless you really need it. it bumps up your ppms really high and gives too much N too.

 

[thedudeabides157]

yeah, 64F is pretty low. that would be a great lights off temp.

the other thing i'd research is your 2-1-1 mix of the flora series. there is a chart that airwalker puts up that seems to work for that series. is that what the GH feedchart recommends?.

not exact recommendations, I was thinking that I was having a nitrogen deficiency so I bumped up the floragro a bit in the feeding. I have one strain(1 plant) the is reacting great to that feeding whereas the bulk of the room is not. I will def look into airwalkers feed regime. I have been running cyco series in soil for years so this is all new to me other than the basics, completely new environment as well so its been nothing but trial and error.

 

[slinkysaurus]

Ph 5.2-5.4 will see your plants much happier in hydro. For me anyways.

Make sure your water temperatures are cool too and there's no roots traveling back down the pipes If you veg for anymore than 3 weeks

 

[JSB99]

not exact recommendations, I was thinking that I was having a nitrogen deficiency so I bumped up the floragro a bit in the feeding. I have one strain(1 plant) the is reacting great to that feeding whereas the bulk of the room is not. I will def look into airwalkers feed regime. I have been running cyco series in soil for years so this is all new to me other than the basics, completely new environment as well so its been nothing but trial and error.

I think what's going on is that you have an abundance of calcium and magnesium in your TDS readings, which means you have a deficiency in other areas, causing the yellowing (probably from nitrogen).

Also, i think 900 - 1000 is fairly high. You might run into nutrient lockout, which would start to resemble deficiencies .

 

[rkymtnman]

not exact recommendations, I was thinking that I was having a nitrogen deficiency so I bumped up the floragro a bit in the feeding.

one thing you should think about trying as you get used to hydro is called the Lucas Formula. It uses GH micro and bloom only (no grow) as a veg thru flower nute

for low light conditions( t5's), it's 5 mL micro/ 10 mL bloom per gallon
for high light conditions (1000w), it' 8mL micro/16mL bloom /gal

 

[JSB99]

one thing you should think about trying as you get used to hydro is called the Lucas Formula. It uses GH micro and bloom only (no grow) as a veg thru flower nute

for low light conditions( t5's), it's 5 mL micro/ 10 mL bloom per gallon
for high light conditions (1000w), it' 8mL micro/16mL bloom /gal

That,or GH Maxi Gro and Bloom, which are probably the same thing.

 

[greg nr]

What do the ruuts look like? Nice and white or brownish yucky?

 

[thedudeabides157]

Ph 5.2-5.4 will see your plants much happier in hydro. For me anyways.

Make sure your water temperatures are cool too and there's no roots traveling back down the pipes If you veg for anymore than 3 weeks

water temps havent been an issue yet..I have my reservoir set up with air displacement tubes that I can just swap back and forth to change direction of water flow. As big as Im planning on getting these Im guessing its still going to become an issue, each bucket has a peep tube to show level of water so ill know which bucket is not flowing properly, also have a shut off on every side so i can address individual buckets at a time

 

[thedudeabides157]

What do the ruuts look like? Nice and white or brownish yucky?

healthy, they do change a bit of color but its just matching the color of my nutrients..no slimy feeling to them

 

[thedudeabides157]

one thing you should think about trying as you get used to hydro is called the Lucas Formula. It uses GH micro and bloom only (no grow) as a veg thru flower nute

for low light conditions( t5's), it's 5 mL micro/ 10 mL bloom per gallon
for high light conditions (1000w), it' 8mL micro/16mL bloom /gal

A friend of mine did exactly this and had great results
I would love to have two separate reservoirs to run diff nutrient regimes but my pocket is hurting from this investment so I need to just concentrate on nailing a few good runs. Have you had good luck with any other lines of nutrients?

 

[rkymtnman]

A friend of mine did exactly this and had great results
I would love to have two separate reservoirs to run diff nutrient regimes but my pocket is hurting from this investment so I need to just concentrate on nailing a few good runs. Have you had good luck with any other lines of nutrients?

here's my nute regimen:

GH maxibloom (start to finish, 1g/gal to about 4g/gal), GH silica, something similar to hydroguard but cheaper. simple, works perfect, cheap. just need a decent scale to measure out properly

 

[thedudeabides157]

here's my nute regimen:

GH maxibloom (start to finish, 1g/gal to about 4g/gal), GH silica, something similar to hydroguard but cheaper. simple, works perfect, cheap. just need a decent scale to measure out properly

I have a bottle of hydroguard but havent seen the silica before. I have used that in the cyco series adamantly. My local shop is not very well stocked in the GH line. Thanks though I will take all this into consideration

 

[rkymtnman]

I have a bottle of hydroguard but havent seen the silica before. I have used that in the cyco series adamantly. My local shop is not very well stocked in the GH line. Thanks though I will take all this into consideration

check this out for why that Lucas formula works well.

http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm

 

[rkymtnman]

I have a bottle of hydroguard but havent seen the silica before. I have used that in the cyco series adamantly. My local shop is not very well stocked in the GH line. Thanks though I will take all this into consideration

GH version is called Armor Si. any brand of silica would be fine though. GH is more concentrated than most