Thanks Reddan.
it all makes sense in your advice and i surely will follow it.
i paused the foliar spray for some 7 days until yeasterday when i foliar fed them again with some mineralmagic.
i'll wait more for the next one. and will do it when lights are just about to go down, in those 7 days i did not foliarsprayed the little leaf holes developed anyway
... some in the lower leaf section that made me think of a bug/infestation problem...but i still don't see anything with naked eye.
it's true i was underfeeding...my meter is Cal @.5 and i did calibrated it and plan to do it regularly ...my tap water comes around 7.5ph and my ph meter when was off calibraton was measuring it @8.5 so i fed in that period @4.7 (thinking it was 5.7)
...i calibrated it and for now it is good. if my meter reads another value of my tap water (like it did)it means it needs calibration also i'm double checking the nutrient solution just in case with GH liquid ph tester...i noticed that my runoff these days i fed @ 600ppm was always 270-280ppm so i am sure i was underfeedeing. also i was getting a lot of runoff because i was feeding them a lot thinking to supplement some more food in that coco... by the way for the last 3 days i fed every day to get them some food and they reacted positively with new growth and they lost a little of that yellowing and are now much more greener...these are them after i sprayed them yeasterday...
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