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Good idea, Going to try that, easy experiment seeing I already have the 1/8 inch lines running to each resivoir.

I could easily Topoff, I have a fill float on each cart now, maybe I should try that.

I could easily Topoff, I have a fill float on each cart now, maybe I should try that.

No I never have, I run single 5 gallon bucket dwc with advanced nutes for veg also, dump bucket and mix fresh once a week. It's ph perfect so I just leave it until Sunday. It seems to be something with these led lights I think, it's been an ongoing problem for the past like 18 months, can't...

No top up

Drain and refill every Sunday, 25 gallon rez one plant dwc.

Ph has been calibrated and I have two different e.c. meters I use both read the same

Yeah, I am currently at 50% recommend

Yeah, definitely see some similarities, I could certainly cut it back, but these are large plants and they take the 1.2 ec in veg it seems no problem.

I go from 315 lec in veg, ec same around 1.2 , then to the gavita 1650 led in flower, seems to be the same story everytime. Tried raising temp and humidity, because that is what is recommended with led, but still same problem

Lol, exactly. Why though?, 1.2 ec to much? More cal mag, led 2.5 ft off canopy maxed out touching ceiling

This is end result week 8

This is start of flower, then the plant goes downhill fast to the point it is completely fried

Could this be leaf septoria? Anyone ever have it?

Roots looking great, dwc, chiller, hydroguard

84 degrees / 65 % humidity I use advanced nutrients ph perfect, ph bounces around a bit but usually 5.8 - 6.2

Been adding 2ml per gallon of calmag. You think I should pump that up, with my e.c. already at 1.2ish ? Advanced nutrients A and B is 1/2 recommended amount on bottle right now.

Same problem, what kind of light are you using?

Been running 1.2 e.c with ro water, you think lower?

Gavita 1650 led Advanced nutrients Dwc Whole plant is looking like this