... I think it’s Calcium deficiency??? (newb)

Akira90

Member
Hello everyone. I have a few plants in diff stages. This one is almost coming out of veg and switching to flower. I noticed it looks a little weird. Any feedback would be great. On a side note I did just put these under a pretty bright led light putting down 800-900 micro moles on my par meter. I’m wondering if it’s light shock...? It’s drooping as my lights had just turned off from my 18/6 and I pulled it out to take a picture.
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This ladies in week 5 of flower. Not sure if it’s calcium but that’s what I’m leaning towards as Im feeding around 5.6-5.8 Ph and using RO. Guessing I need to use mag cal not just Mag and let it go above 6.2 to uptake calcium. I figured the GH Cocotek had enough calcium to offset the 1/4 tablespoon per gallon of magnesium (epsom salt) I’m adding as I’m growing in Rockwool. Looks like I was wrong :(
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This guys in week 5 of flower also. I’m pretty sure it’s calcium?
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Any help and feedback would be greatly appreciated.

Thanks in advance everyone :)
 
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meetjoeblow

Well-Known Member
Most nutrient lines short the cal/mag and sell it as a supplement. Its not even worth the head ache to skip buying it. I no you need cal/ mag, I think you should raise your ph to 6.1 ish, and I think you need more phosphorus. What's your ppm. Also you neevvvveeerrr want to go into flower with any type of issues. Once 12/12 starts, you're racing the clock
 

oh really???

Well-Known Member
i agree DO NOT FLOWER YET. My knowledge says ph issues. Purple stems/yellowing leaves/necrosis. If you look at only one of the issues you could assume nitrogen deficiency, phosphorus deficiency, or cal-mag problems. It isnt a light issue. what questions do you have?
 

Akira90

Member
Thank you very much guys. The first picture, I’m coming to the conclusion that it may have been over watered by my roommate while I was out of town for a week... I guess he thought it needed to be always wet. Could that have caused this?

Still trying to figure out the plants in my flower tent. I guess those pictures of the leafs could have also been caused by him over watering?
 

oh really???

Well-Known Member
Thank you very much guys. The first picture, I’m coming to the conclusion that it may have been over watered by my roommate while I was out of town for a week... I guess he thought it needed to be always wet. Could that have caused this?

Still trying to figure out the plants in my flower tent. I guess those pictures of the leafs could have also been caused by him over watering?
drooping leaves could be overwater, but....all the other factors say lockout.
 

oh really???

Well-Known Member
Change Rez. Flush with PhD water for a day or two. Then Change Rez and add nutes at 1/2 strength. Ph at 5.5. Your ph should raise and ppm/ec drops. Let me know how else I can help.
 

meetjoeblow

Well-Known Member
Wait I was unaware you were operating out of a full blown hydro set up. I thought they were suspended in a soil less media and you were hand watering. That kinda changes things. Over watering causes droopy leaves. But you shouldn't be able to no scratch that it's hard to over water in a hydro. Especially since rock wool drains so well. Do you mind taking a picture of your setup.?. And how long are you leaving the plants submerged? agree with oh really . you should flush to give yourself a clean slate. Nutrient deficiencies express themselves as various leaf and stem color changes. The fact that you have more than one normally means your ph is screwd and and the plants can't absorb what's in the soil but if that's not the case the plants could be under fed
 

Akira90

Member
Thank you very much everyone. I’ve been redoing my setup and hand watering to make sure the ladies dry out more and carefully watching the pH. They’re starting to look a little better after I did a flush but now I’m seeing this pop up.

I want to say maybe potassium or is this just part of the magnesium issues? These are in the middle of the plant. Not new top growth. 6806FF77-C508-4132-846D-8C91CD413EAD.jpegC3943E45-6915-45D7-8FEE-922840926E21.jpeg
 
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