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Some silica would probably get you a little longer between watering as well

Did you end up getting some beneficials? Also can go sterile route with pool shock…

Also N would help magnesium as well as phosphate. Flowers look good anyways the leaves will probably not recover..

I’d check your runoff PH and EC. It looks like Magnesium to me maybe something else too. I suspect PH is locked out. I haven’t used the soil and not sure how well it is buffered

Weird it would be too much N with the fertilizer you are using.

Looks to be revegging from the pictures

It looks like nitrogen deficiency. Did you switch to flower nutrients as soon as you flipped 12/12? I wouldn’t worry too much at this point as long as your nutrient profile is correct

Grow long enough to put the “legal” market into bankruptcy. I’d rather give it away than have someone buy from the state. They weren’t there before the $$…

Are these all the same clone? When checking runoff also look at ppms. 1000-2000 is a general good number some plants will definitely tolerate much more.

I don’t have a nutrient breakdown for the fox farm grow but I’d say you should look into your nutrients. I use 4-18-39, calcium nitrate, and epsom salt and gh micro which is about the cheapest and most customizable if you want to look into it. There is a few nutrient calculator excel sheets...

I’d lean toward magnesium deficiency judging by purple stems, taco leafs, older fan leaves. Also maybe nutrient burn or lockout shouldn’t be ruled out. What medium are you in? Have you checked runoff ph? I run a mixture of promix and perlite and noticed I get magnesium issues with high light...

I would agree. Stretch is generally 2 to 3 times the height of the plants when you flip to 12/12.

Likely the alkalinity of your tap water. As far as PH vs lockout you could have correct PH but the ratio of nutrients could be off causing a deficiency as well. K, Calcium, Mag ratio should be as close to 3:2:1 as possible during VEG and 4:2:1 as flowering progresses. I would check your PH of...

I consistently have runoff in Promix over 2000ppm and dont have much beside the occasional burnt tip. I would lean more toward PH or imbalance/lockout.

I have a 1/10HP active aqua chiller I haven’t really ran yet beside confirming it worked. Currently wrapping up a run in promix getting back into cultivation after a few years off. Have some vegging plants in dwc and wish to kick off the rdwc I setup a while ago. They are working well as a tray...

I I’ve had fair results with this running without any chlorine and temps 75-77 for periods of the day. I use about 1/2 ml per gallon. Also use it in promix with same salt fertilizer as dwc.

Hydrogen peroxide is a cheap way to clear it up. Forget the ratio but can be found fairly easily. Could use pool shock to keep it away or could go beneficial bacteria. Really your choice. Pool shock is probably cheaper and is easy to maintain. Good luck

Do the lights have UV diodes? I’ve seen similar spots and it seems to be related to UV and maybe light intensity.

Reminds me more of fox tailing... are you in a warmer environment?

Prayers from NY