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LED sand EC levels ?
Hempystarted grow question 7 months ago
First time grower under LED.. do plants eat more under LED I add some deficiencies a week back Ec was 1.9 run of 1.9 ph 5.5 run off 5.9
Lights stayed the same now pushes Ec at 2.3 first week of flower run off 2.3, ph 5.5 run if 5.8
Co2 ppm 1200
They seem to be loving it
Thought?
Solved
likes
00110001001001111Oanswered grow question 7 months ago
If 2.3 can't put some color back into the top leaves, i'd reduce light a bit. May just be too much DLI even with 1200ppm. Some lower leaves look quite lush, so leads me to think it's more light related at the top and you haven't been skimping, unless that's including some really high ppm tap water.
The pH is probably better wavering between 5.8-6.0 instead of 5.5-5.8, but if you've been using this mix for a while and already callibrated the ratios to work in consistent manner throughout your grow without symptoms, then i wouldn't change a thing as you've already adjusted for a lower pH. 5.5 is a bitch sketchy for Ca++ availability and quickly other things shortly after that. MAy be requiring more ppm of Ca than necessary.