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Drooping leaves young plants, doesnt seem to be a water issue

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Ralphie

Well-Known Member
I will try to sum up the issues im having with a history/explanation so far..

THis is my first grow using the superponics reservoir, ive grown in soil a bunch of times but this is my first go at hydroponics and so far its been humbling to say the least. I spouted these seeds around 18 days ago in rockwool and made the mistake of putting them in the DWC system too soon, which i know realize i shouldve waited for better roots, i did it once the tap root popped out the bottom of the rockwool, and the plants were immediatley stressed even with the kind LED 36" away, as i saw the stress i correlated it to the transplant, so i moved them back out and they started to recover.

At this point they are all well rooted and cant spend anymore time in the starter cubes, some are responding very well to the move, but others not so much. I always thought leaves drooping like this were overwatering, so ive let them dry out completley before doing any top water feed, and the problem remains. I posted a bunch of pics showcasing the best and worst plants, there is no sign of discoloration except for one plant of the 16, which i posted a picture of, however some of the very new leaves have a purple tinge to them and im not sure if thats normal. I am currently running nutes at 500 PPM, which the plants seem to be responding well to (most of them). At first when i went into DWC i thought i was burning them because i started at 300PPM, so i flushed the reservior and used UC roots and PHd water and that did not fix them either. that being said i dont think overfeeding is the problem. I am really lost on what it could be at this point, other then maybe stressing them early on.

I posted pics of some healthier plants, so not all will look terrible.

Other info:

Grown from seed
PH 5.8
room temp low 80s/high 70s (has gotten to high 80s, but typicall
Humidity 45-55%
Reservior temp 70-70
Nutrients: UC roots, current culture veg a / veg b
 

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Ralphie

Well-Known Member
yes there is space, here are some more root pics, i would say the space is around 1.25 inches, except i will throw a frozen (sealed) bottle of water in there in the mornings to keep res in check temps and that will bring it up to .5 inches or so, pics shown reflect the water bottle in there
 

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Bear420

Bear420

Well-Known Member
Looks to me like they might have gotten too hot at one point. Try to keep your temps down below 85. and the root zone check your temps there too.

Good luck hope they come back and do better for you.... :)
 
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Ralphie

Well-Known Member
I will try taking solution out, ill bring it down to about 2 inches from the pots, I also gave some updated pics, of the best and worst plants, still a lot of growth on the best ones, but some are definatley hurting more then others
 

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TacoMac

TacoMac

Well-Known Member
polishpollack said:
tacomac, that can't be right. pump in enough air and you're golden in dwc.
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You can't leave the roots soaking in the solution. If you could do that without adverse effects, there would be no need for a pump to begin with and there would never be any such thing as over watering in any medium now would there?

Ralphie said:
I will try taking solution out, ill bring it down to about 2 inches from the pots, I also gave some updated pics, of the best and worst plants, still a lot of growth on the best ones, but some are definatley hurting more then others
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And that makes perfect sense if you go back and look at the first image you posted of the cups. Some roots aren't that long yet, so they're not sitting there saturated in the solution as much as the ones that are longer.

As a check, make note of the plants with the longer root system. I'll bet money they're the ones hurting a bit more.
 
polishpollack

polishpollack

Well-Known Member
Tacomac, you're wrong again. Over watering in soil keeps oxygen out, which is something roots need. You pump air into a DWC bucket to put oxygen in the water. There is no over watering there, unless you don't have enough air bubbling. You don't need to suspend roots in air to prevent over watering.
 
TacoMac

TacoMac

Well-Known Member
polishpollack said:
Tacomac, you're wrong again. Over watering in soil keeps oxygen out, which is something roots need. You pump air into a DWC bucket to put oxygen in the water. There is no over watering there, unless you don't have enough air bubbling. You don't need to suspend roots in air to prevent over watering.
Click to expand...
OK. After he drains off 2 inches of water and it straightens everything out I'll remember you said that.
 
*BUDS

*BUDS

Well-Known Member
Transplanting , re potting or re locating is the usual cause of this major issue. All i can suggest is put the other light back over them to reduce this shock which will probably kill them or at least stunt them.
You will have to work it out yourself but it seems the trouble started with the change.
 
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CannaCountry

Well-Known Member
While I don't subscribe to DWC, I've never seen a set up where the roots weren't in the solution all the time. It's called Deep Water Culture for a reason. One thing is for sure, and don't take this as a bashing, just an observation; almost none of your girls are liking what you're doing. Oxygen in your water is super important; be sure you have enough. Be sure of your pH and I would abandon the frozen water bottle and get a reservoir chiller; from what research I've done in the past, this is an extremely important variable to manage in DWC.
 
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