WTF! (Hydro) Leaves yellowin from bottom up

I just started flowering a few days ago. I thought I had this problem taken care of before I flipped....guess not!

SETUP
DWC
AN Nutes Sensi Bloom a&b, Sensizym, and Carboload.
Temp:75
RH:30%
pH:5.6

The pH goes up pretty quickly. I try not to let it get above 6.0. I usually let it float up to 5.9 (it gets up there in about 4 hours) then down it.
I had a problem similar to this in veg. but it seemed to have stopped. I am starting to lose alot of fan leaves. Some of the leaves look like something is eating them but, I cannot find any bugs anywhere. ALOT of the bottom leaves are turning yellow and then getting crispy. It is working its way up the plants(all of them).:wall:

One more question. Do the little orange lights on my humidifier and heater effect the dark period? I put tape over them but, the light seems to illuminate the whole humidifier. Even if I cover the whole thing in light prof tape the vent has to be open and the light will escape through it.

If someone could give me some suggestions I would greatly appreciate it.
Thank you RIU.:wall:
 

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MEANGREEN69

Well-Known Member
are u useing a cal/mag? ...some bug mite be eatting them cause threre weak..but looks like a cal/mag prob it goes really fast in HYDRO...i could be wrong...also put tape over the lil light the only light that doesnt mess with them is green
 
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