Brand new hydro set up needs HELP! Any suggestions appreciated!

Hello all! I’m new to the community and growing marijuana in general. I don’t have any local resources for helping with my problems along the way but with the internets help I’ve done decent so far. I’m running into some issues that I need some more help with, and I’ll have to include pictures and information to explain what I mean.

First let me start by explaining that I was growing in soil up until recently. I ran into a few problems with soil along the way but nothing major until the fungus gnats larvae had stopped my root growth and I didn’t know how to kill them for good until I found the BTi bacteria. Anyway, around the same time I was fighting gnat larvae I decided I was going to need to build a hydro setup that involved less frequent maintenance because sometimes I would have to leave my plants unattended for a couple days at a time and with soil it wasn’t possible.

So not really caring about the fate of my current plants (the gnat thing had them in bad shape pretty quickly) I decide to build a hydro setup that I would repopulate with new clones. After the system was finished, I had also been treating the larvae for a couple days with great success. My plants were looking healthy again so obviously I can’t just pitch them, so I googled if a soil plant can be converted to hydro and I’ve seen people have luck. So I take one of my plants and start scrubbing it’s roots clean to move to the new hydro system.

The first night it spent in the hydro setup went great, it was looking good the next day. It spent the whole next day under light and getting 24 hours of flowing water. I should also mention these plants are about a week into flower at this point. Toward the end of its first day in the hydro setup I noticed two things, a tiny spot of blueish/black mold on the roots and some wilting in the leaves. I figured I was drowning the roots and decided to put it on a timer giving it a thirty minute flow with an hour in between waterings, and no water overnight. You’ll be able to tell how my system runs from the pictures, it’s kind of a hybrid system that’s most like an ebb and flow but with more of a drip/steady flow style feed, but also will have the benefits of a dwc setup when roots reach the bottom of the buckets. I’m flexible to changing the feed method as well, my plan was to add internal misters to the buckets after my roots started to develop a little more for something of a low pressure aeroponic effect. There’s a fourth bucket outside of the tent that sits lower than the three inside the tent and recirculates everything back up hill. The ph is set to around 5.8 and I have what I would consider a proper nutrient solution in the bucket currently. The whole system holds about 7 gallons of water and I circulate with a 400 gph pump.

Basically what I need help with is this. The plant that I’ve tried to move from soil to hydro isn’t looking any better with the different watering timing and I’ve put it back into veg lighting to hopefully see any signs of improvement. (I know I’m stressing the shit out the this plant but my goal is to test the system, not necessarily crop out this round). So what is happening with my hydro system that needs adjusted? I was overwatering at first and then dialed it back about perfectly to the golden rule of “until it’s almost dry again, then rewater” and now it looks thirsty. And dead as a door nail. And the roots have some mold growing on it. Should I try converting the other two plants that are mid flower, in soil, to this system? With some major adjustments of some kind, obviously. The incentive to do that is that the hydro system is in a charcoal ventilated grow tent and I’d really prefer my nugs in there.

If you’ve made it this far into this post I appreciate you more than you know! I’m going to start including pictures pretty much in the order that they happened. They’ll include some of the construction of the hydro table just to illustrate how it works. The last photos are of my current plants that are just on the shelf under an old hps light in my basement that I really have to do something with soon, even if it means growing them in soil in buckets inside the hydro table in the tent. Step one is trying to diagnose the hydro system though!AAC70B5F-5C69-43A7-BA18-48BB28D3AB4E.jpeg 4C6555A2-1E8A-47F0-B4F6-6872B36B36F1.jpeg808A62CC-B738-4B59-B7A2-651FDD59069F.jpeg A240E5CD-ED70-4E75-93F9-DC5127D28D27.jpeg 7F6E628E-F4B7-47CB-B573-4B17F2E7821A.jpeg View attachment 43213760DDF39F3-2074-4147-9A15-4A214CDE6F71.jpeg 306C88F1-5439-4445-8538-945CF92E265A.jpeg05A0CE32-E7BC-4B43-AE64-41B9D8D89594.jpeg 7241C4D8-8DDE-4740-8091-D1564F888522.jpeg77561248-94C4-46B3-9EA9-BFE05382E900.jpeg
 
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Airwalker16

Well-Known Member
Ya that girl looks rough. I'm sorry she's not happy. But FYI, roots can't be drowned. DWC/Rdwc has them in water literally from the day the clones sprout roots.
 
Ya that girl looks rough. I'm sorry she's not happy. But FYI, roots can't be drowned. DWC/Rdwc has them in water literally from the day the clones sprout roots.
So do you think it was just the fact that I was transitioning from soil ? Because after constant watering she started to wilt and then more concerningly root mold. Also the roots were starting to discolor a little bit to a yellowy/brown, sure sign of root rot. What if I were to install a few fine mist sprayer heads inside the bucket and kept it on all the time? There would be enough flow to keep mold from starting but not a heavy enough flow to soften the stem
 
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Airwalker16

Well-Known Member
So do you think it was just the fact that I was transitioning from soil ? Because after constant watering she started to wilt and then more concerningly root mold. Also the roots were starting to discolor a little bit to a yellowy/brown, sure sign of root rot. What if I were to install a few fine mist sprayer heads inside the bucket and kept it on all the time? There would be enough flow to keep mold from starting but not a heavy enough flow to soften the stem
Switching from ditto hydro. Guarantee that's the problem. Some just don't make it. Not too sure how your system works really but I guess fills and drains completely? Consider building a waterfall aerated RDWC system and you'll have hell's success. Invest in a chiller if you haven't already.
 
Switching from ditto hydro. Guarantee that's the problem. Some just don't make it. Not too sure how your system works really but I guess fills and drains completely? Consider building a waterfall aerated RDWC system and you'll have hell's success. Invest in a chiller if you haven't already.
Thanks for the input! I really appreciate it. I made a few adjustments to the rig and tried again for the soil conversion with one of my healthy soil plants. So firstly I changed the feed system to sprayers, and for now isolated the other two buckets so I’ve got the 400 gph pump feeding only three small sprayers inside the first bucket and I was actually really impressed at the quality of the mist. I’ll need to upgrade my pump to achieve the same mist in al three buckets down the road but for now it works. The system doesn’t fill and drain completely, the drain pipes are connected to a fourth bucket outside the tent that’s almost full to the brim, and that inch of water in the bottom of the bucket represents the same body of water/ water height as that at the top of the bucket outside the tent. I set it up that way so eventually when the root ball is big enough it will have the ability to reach constant water. I don’t yet have a water chiller but the water stays consistently around 73. I also took more time to ensure that there were no detached root fibers remaining entangled in my roots, waiting to rot. I think I had a little bit of this going on last time. After the sprayers went in I flushed the whole system and put the new plant in and left the pump running all night long. This morning I just switched them to 5 minutes on and 10 minutes off. I’m also trying to keep this girl in flower, last time I ended up switching it to 20 hours of light in a panic to get it to grow better/stay alive. I’m following my Advanced Nutrients’ grow micro and bloom light feeding chart at the moment, I’m new to hydro and still need to get myself a ppm/ec meter. I’ve also got some Hydroguard in order that I plan to add to the system. But she’s just about to go into her first full day of light after the hydro conversion which should be informative at the least. 5CB40C66-01E9-4CF8-8224-6DF3E40BA67B.jpeg 33F2C719-3E28-4A1B-89F1-36DD4403D525.jpeg E7F5ADD8-35D9-4744-9A02-09796707A9A7.jpeg A2D93340-7291-4A8E-A55E-B874D57BF17F.jpeg 071FC984-5B8B-4ADB-9DC8-B340486772CE.jpeg
 

Airwalker16

Well-Known Member
I can tell you from my own experience, others may be different, but there are night and day difference in root growth and health from even 68 to 73*.
 

Airwalker16

Well-Known Member
Thanks for the input! I really appreciate it. I made a few adjustments to the rig and tried again for the soil conversion with one of my healthy soil plants. So firstly I changed the feed system to sprayers, and for now isolated the other two buckets so I’ve got the 400 gph pump feeding only three small sprayers inside the first bucket and I was actually really impressed at the quality of the mist. I’ll need to upgrade my pump to achieve the same mist in al three buckets down the road but for now it works. The system doesn’t fill and drain completely, the drain pipes are connected to a fourth bucket outside the tent that’s almost full to the brim, and that inch of water in the bottom of the bucket represents the same body of water/ water height as that at the top of the bucket outside the tent. I set it up that way so eventually when the root ball is big enough it will have the ability to reach constant water. I don’t yet have a water chiller but the water stays consistently around 73. I also took more time to ensure that there were no detached root fibers remaining entangled in my roots, waiting to rot. I think I had a little bit of this going on last time. After the sprayers went in I flushed the whole system and put the new plant in and left the pump running all night long. This morning I just switched them to 5 minutes on and 10 minutes off. I’m also trying to keep this girl in flower, last time I ended up switching it to 20 hours of light in a panic to get it to grow better/stay alive. I’m following my Advanced Nutrients’ grow micro and bloom light feeding chart at the moment, I’m new to hydro and still need to get myself a ppm/ec meter. I’ve also got some Hydroguard in order that I plan to add to the system. But she’s just about to go into her first full day of light after the hydro conversion which should be informative at the least. View attachment 4321660 View attachment 4321661 View attachment 4321662 View attachment 4321663 View attachment 4321664
Hey! Looks like she's bouncing back!!
 
I can tell you from my own experience, others may be different, but there are night and day difference in root growth and health from even 68 to 73*.
I’ll definitely keep that in mind, I suppose that’s my next step because I can’t figure out what else I could be doing wrong. Here’s what happened to my second newly transplanted soil plant after a day in the hydro system AB1DBD59-FF98-4C44-935B-BA6BE0DFA79B.pngEE8DF190-F16F-43F7-9AA4-411AD1F3D8E3.png BFCD9019-7BBC-4573-B233-B4C908D2F040.jpeg
 

athomegrowing

Well-Known Member
It does but only when the tents open. It’s about 35 when it’s closed so I didn’t think that was low enough to warrant adding a humidifier. Do you think I should?
Yes, probably. You may encounter problems. I had the humidity drop in a previous run, and areas where the light was intense and the humidity was low were irrecoverably damaged. Keep the humidity near 60% during veg to play it safe. I could've prevented my loss by having higher humidity, and a fan going over the tops. Also by keeping the lights the right level, but I wasn't very far off the mark.

FYI when you go from soil or any non aqueous medium, so hydro - there's an adjustment time while your plant grows "water roots". Plants that are raised in soil or such have air roots, and could drown theoretically. The solution to your wilting babes is to spot the air roots and keep those out of the water while your water roots grow in. If it's already been a couple of days you're probably ok by now.

https://www.grovida.us/how-to-hydroponics/air-roots-vs-water-roots.html
 
Alright so here’s where we’re at on transplant number two. I’ve turned the light off directly above it, its still getting plenty of light from the other two in the tent I just don’t want her to roast right now while she recovers. I’ve added a humidifier and made sure to keep the room consistently above 40%. I’ve been around all day to add ice packs to the nutrient solution to keep it below 70 (ordered an electronic chiller to do this for me) Also my Hydroguard finally arrived this morning so I was able to add some of that to the mix.

And the results of all this?

Still heavily wilted... However! We’re finally starting to see some positive root development. From everything I’ve come to gather, the soil transition to mid pressure aero is just a real aggressive one. The soil roots just can’t absorb nutrients from the small micron mist I’m giving them. But the good news is that after day two, the roots are starting to form tiny hairs as they convert to being able to receive the nutrients available to them.

The first transplant had started to yellow at the roots by now, and they were very limp and unhealthy. These roots still have very good color (keep in mind they spent their entire life in soil up until 48 hours ago). Also notice the small hairs branching out from the sides of the roots. (The dark spots are just leftover soil debris from a less aggressive root scrub)

What does all this mean? My only goal was to test my system to see if it would be viable for growing because the way I have it set up is going to involve extremely low maintenance for me down the road which is my whole goal. Not cropping out one plant this month. So even if this plant doesn’t make it, I feel really good about my system for clones started aeroponically C2E4C3AF-792C-4F04-B63C-B40194C187A0.jpeg264D1478-913F-496A-BD08-5390E0963224.jpeg826A36D3-6488-4F1A-A73B-4C511A4F2475.jpeg
 

medviper

Well-Known Member
What does all this mean? My only goal was to test my system to see if it would be viable for growing because the way I have it set up is going to involve extremely low maintenance for me down the road which is my whole goal. Not cropping out one plant this month. So even if this plant doesn’t make it, I feel really good about my system for clones started aeroponically
do yourself a favor an pick up a biological fungicide like hydro companion https://wallacewow.com/collections/all/products/companion-biological-fungicide
 

Airwalker16

Well-Known Member
Alright so here’s where we’re at on transplant number two. I’ve turned the light off directly above it, its still getting plenty of light from the other two in the tent I just don’t want her to roast right now while she recovers. I’ve added a humidifier and made sure to keep the room consistently above 40%. I’ve been around all day to add ice packs to the nutrient solution to keep it below 70 (ordered an electronic chiller to do this for me) Also my Hydroguard finally arrived this morning so I was able to add some of that to the mix.

And the results of all this?

Still heavily wilted... However! We’re finally starting to see some positive root development. From everything I’ve come to gather, the soil transition to mid pressure aero is just a real aggressive one. The soil roots just can’t absorb nutrients from the small micron mist I’m giving them. But the good news is that after day two, the roots are starting to form tiny hairs as they convert to being able to receive the nutrients available to them.

The first transplant had started to yellow at the roots by now, and they were very limp and unhealthy. These roots still have very good color (keep in mind they spent their entire life in soil up until 48 hours ago). Also notice the small hairs branching out from the sides of the roots. (The dark spots are just leftover soil debris from a less aggressive root scrub)

What does all this mean? My only goal was to test my system to see if it would be viable for growing because the way I have it set up is going to involve extremely low maintenance for me down the road which is my whole goal. Not cropping out one plant this month. So even if this plant doesn’t make it, I feel really good about my system for clones started aeroponically View attachment 4322446View attachment 4322447View attachment 4322448
Just keep that res temp as close to 68 as you can my man. That will get you those banging roots to start. And hell yeah on ordering a chiller. What'd you get?
 
Just keep that res temp as close to 68 as you can my man. That will get you those banging roots to start. And hell yeah on ordering a chiller. What'd you get?
Oh just a cheapo aquarium chiller on amazon. It was only like $100. Said it’s only a 5 gallon so I’ll be pushing it a bit but I figure I’m not trying to change the temp drastically. Read a review from some guy in Texas who’s raising shrimp in 50 degree water and he said that thing does great haha
 

Airwalker16

Well-Known Member
O
Oh just a cheapo aquarium chiller on amazon. It was only like $100. Said it’s only a 5 gallon so I’ll be pushing it a bit but I figure I’m not trying to change the temp drastically. Read a review from some guy in Texas who’s raising shrimp in 50 degree water and he said that thing does great haha
OH boy... You didn't really buy one of those shit peltier thermoelectric chillers did you? They don't work for shit... There's 1/10HP for less than $300 that would've lasted you years and worked so much better. Don't skimp on this purchase. This and carbon air filters are two things you can't cheap out on if you want results.
Link me to what you bought and cancel your order bro. That $100 is better off not even spent if it's what I think it is.
 

polishpollack

Well-Known Member
You have to really know what you're doing if you're using an aeroponic style grow. Pure DWC is a better choice for most hydro growers. The high oxygen exposure in aeroponics can be too much for plants, I suspect it's because of increased fert uptake. I don't know why you're seeing so much wilting but I've seen over time of watching growers in these forums that the simpler methods that require less tending to, are the better methods even though they take longer. DWC is good, quick and stable. Nothing wrong with soil either. Using sprayers takes more knowledge of oxygen exposure and fert levels to get right. This doesn't answer your problems, but I think you went from boom to bust, from simple to complex, without knowing what you were getting into. The issues of disease or algae in the water are possible. If you're seeing slime in the bucket or on the roots, you have algae which is due to a light leak to the water causing algae to grow.
 

70's natureboy

Well-Known Member
It's just like a plant that doesn't get watered. Those roots would have loved to sit in a bucket of water with some bubbles in it. It's almost too late now.
 
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