thanks , for now i have spaced them a little and put a water proof / vapor barrier between them . i managed to support the netting better / pull it tight and i have stopped feeding daily to see if the 4 gallon fab pots will dry out a little faster as i was feeding slowly 3 times a day spaced 3 hours intervals untill runoff . the last time i fed ( yesterday) my input ec was 1.2 the run off that i got back was 0.6 , so i added more canna a n b to make the ec 1.4 then finished with a small watering ( without runoff ) now i know i can possibly run into all kinds of problems with this sense of a canopy all being so close . the new growth is not looking as healthy although still growing . my temp is at 26 c humidity 68 vpd 1.06 and co2 650ppm . i think my issue is not dialing in feed timing , strength and amount with canna coco , also not sure weather to add the cal mag in with the a and b . i may switch the canna nutrients out before flower for npk raw industries which i have had better results with previously as it has the yucca and kelp fúlvic acid etc ,