Hello all! Newbie here with droopy plants...

Firstly, hi! I am psyched to finally be able to post stuff in here, normally I just read everyone's advice. I am on my second grow and having some issues I hope someone can offer some advice with. I am using the culture current hydroponic system with 24 plants under 14 600 watt Gavita lights. My first grow went off without a hitch, it was quite amazing actually. My new plants (last week of veg, approximately 8/10 weeks old from cloning time started out with a little root problem at which I should have ditched them. part of the root system, closest to the plant had yellowed (I think from adding sos to ez cloner) but the rest of the roots were healthy and white so I decided to just go with it. Right now about half of my plants are quite droopy as well as yellowing leaves in the middle bottom section of the plants. My research has me convinced that it is a manganese deficiency due to the fact that my ph was around 6.2-6.3 for about a week, thus leading to lack of ability to absorb manganese. Again, just my opinion. It has been back down around 5.8-5.9 for a couple of days now. The plants do actually look a little better. I am going to attach some not so good photos of the plants as well as one of the leaves that started out yellow and droopy and sorta now has rusty looking tips. The leaves on all of the plants seem to be a bit brittle or dry feeling also. Water temp stays at 67, ph now at 5.9. Temp in room has fluxuated immensely as the ac was out of commision for about 4-5 days. IT got as hot as 111 one day, mid 90's the other days, but only for between 1-2 hours max. My main concern right now is that the healthy plants, which are almost twice the size as the unhealthier ones are droopy and I would like that to not exist. Any advice/questions would be greatly appreciated. Thanks!

Phosphorous deficiency with the spotting. The heat is one of your bigger issues obviously along with pH control. Is your pH stable or is it swinging?

don't have any advice but i'm interested to see what the problem is.
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hotrodharley said:

Phosphorous deficiency with the spotting. The heat is one of your bigger issues obviously along with pH control. Is your pH stable or is it swinging?

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Not even sure I am responding right, hopefully... Phosphorus deficiency I like cause I just looked at the nutrient absorption chart and with the ph being that high, its the same situation as the manganese deficiency. Thanks... I am excited to be learning the ins and outs, the important stuff for sure. The ph rises every 1-2 days and I add a little ph down. Did not have to do that for first grow. It is reverse osmosis water so I am not sure what is causing it to rise.

tyler32648 said:

Not even sure I am responding right, hopefully... Phosphorus deficiency I like cause I just looked at the nutrient absorption chart and with the ph being that high, its the same situation as the manganese deficiency. Thanks... I am excited to be learning the ins and outs, the important stuff for sure. The ph rises every 1-2 days and I add a little ph down. Did not have to do that for first grow. It is reverse osmosis water so I am not sure what is causing it to rise.

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S, Mn, Fe, and Zn are decifiencies that aren't as commonly seen as P.
And quit pulling leafs off to take pics.
BTW, are you the same Tyler that got banned late last year?

If there is purple or red in the stem moving from the leaf to the plant itself then theres a good chance it could be a potassium issue as well, I only say this because of the really bad curling that makes your leaves look like claws. Also hot rod Harley is right about the spotting.

Thanks for the advice guys... and no, I am not the same Tyler that was banned from anywhere... Looking forward to offering as well as receiving future advice from these boards.