Wilting plants in RDWC using LED's

At least half of my girls are seriously wilting. Check out the pic's. I'm using the Under current RDWC system with LED's. Half of the led's are the long bar panel type (80 watts at wall plug x10 and also 12 300w chinese panel lights (3w 8-band 180w actual draw each).

Humidity has been a major problem (over 70%) until I installed a large dehumidifier yesterday. Room is now steady at 50% humidity. I'm using Under Currents own nutrients at a very low 250ppm. PH is 6.2 - 6.3. Room temp is 73 (without all the lights turned on...if I turn them all on, the system temp jumps to over 75. I've ordered a large water chiller that should arrive in a few days. With it installed I think I'll be able to run all lights and keep water temp below 70.

Right now, I'm kind of limping along because I'm new to led's. I've done many HPS grows (that turned out very well). This is my first led grow, and even watching all the youtube videos and educating myself, I'm not sure how powerful these things are.

Am I hitting the plants with too much light? They are currently 36" above canopy. Not enough light? I'm afraid to move them much closer for fear of burning them and making them wilt even more.

Power is a major issue here. I can't just throw on some hps's and rock and roll. The main issue I'm worried about now is the wilting. Not all plants, about half. All were transplanted to the RDWC from EZ-cloner 3 days ago.

The wilting looks like plants that were grown in soil and over-watered, but they have never been in soil. How long should it take the plants to recover from too much humidity (if that's the problem)?

Thank you all!

your PH is too high. You want between 5.5 and 6.0...ideal 5.8

Those look under watered, are your roots set in good? And how high is your water level?

Definitely agree with hellraizer30.

Roots were a foot long, so I carefully coiled them in the bottom of the netpot, then hand-filled it with hydroclay to the top of basket. The instructions say put down an inch of clay pebbles first and then put in plant, and then fill to top with hydroclay. I was concerned that may damage roots, so I put the roots directly on bottom of basket with pebbles on top. Water roils and bubbles more than half-way up the pots. So they seem to be getting plenty of water/oxygen.

Helraizer30 - Is this what you mean by "set in good"?


Thanks again!

It's not PH.

Two things make plants look like that, root rot and dehydration. Dehydration is pretty obvious (ie: the roots aren't touching the water), so I'm guessing it's the latter.

If it's root rot, the wilted plants will die and more will probably wilt and die. Root rot is generally from too high of water temp, which keeps oxygen from dissolving in the water. Without oxygen the roots die, then rot, which can also cause bad bacteria growth. Shittiest part about root rot is that the first symptom you see (wilting) occurs after the roots are destroyed - you can't fix the plant, and probably can't clone it.

But yeah, root rot is about the worst thing there is. I'd take clones and maybe move the non-wilted plants to something like an E&F, and throw the wilted plants out.

What ended up happening with it man?

Looks like they don't have enough oxygen to the roots are the air stones working properly?

Roots don't drown as long as the top 1/3 of roots are exposed to air they will be fine. You definatley need a tea for some benes if your roots are brown but if I were you I would just salvage the good looking plants and dump the dead looking ones.