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I feel your pain man. I just grew out a strain that completely rotted. It sucks cause they almost look ok from the outside, but once you crack it open, its gross.

i bought a bottle of great white that was expired. I called them and they said the expiration date was just a state requirement and that it had a shelf life of years.

if your using a lot of air, then you may be breeding too many microbes in your system. Do you have any biofilms?

from what i have read about springtails, it seems that in low numbers they are harmless, but the plants will lag if the springtail population gets too large. I run a dead res with h2o2, so the springtails have no fungus to eat, therefore, they will eat my fine root hairs.

checking some plants in my garden and i found these in the runoff anyone else agree that these are fungus gnat larvae?

roots look great other than the pest problem. No rot at all. 2ml/gal of silica during the first week of flower. no hydroplex until week 3 when they get 2ml/gal

plants are surviving to the end, but with some severe deficiencies. Good trich production, but lacking in weight. i put up some fly paper shortly after starting this thread. In the flower room, the fly paper has about 30 flyers on it. The fly paper in the veg room is still clean. I do use h2o2...

you still rocking cultured solutions?

some updated pics at day 25

oh man, forgot about this post...sorry everybody still chasing phantom deficiencies....bugs pics 1-4 are in roots after harvest 5th pic is from sticky fly paper

does anyone second this? So many people who run e/f use air stones. But house & garden strictly advises against airstones since it breaks apart their nutes. I have not seen anything bad in veg where i do not use any airstones, but i still use them in bloom in my e/f

ok, 2.5ml/gal of calmag went in yesterday. Also, flushed them out yesterday.. I will update in a few days.

thanks for the help lex. I attached my filled out canna stats for the recipe, not sure how to interpret it yet. It is saying ca 40ppm and mg 23ppm some updated pics, now at day 8

im leaning towards a calcium def, but i would like confirmation before i try to fix it so i do not create another problem. Ebb and grow with botanicare pure blend. This pics are from day 4 in flower after a 48 hr dark period. EC just under 1, but my mg:ca ratio is about 3:2 and i am using RO...

have they been top-flushed? Rockwool will wick and salts will build up at the top if you only flood/drain

maybe too much air. cut down the amount of air running thru the airstones.

you gave your room size, but what will your light footprint size be? Seems like it will be a lot of lumens/sq ft. You will be very lucky if a 20# tank lasts 3 weeks, probably 2 is more realistic. treebark is right about the sealed hoods...nearly impossible and i used tons of tape and...

rh ranges from 55-65 i have been foliar feeding with epsom and calmag, so if they were calmag def, then they should be coming out of it soon.

ok, so the round diffusers will not work for me. Has anyone tried the tubular diffusers? Since the hose connects from the side, they will sit lower. *In testing, these air diffusers produce a slightly larger air bubble than air stones which translates into less oxygen transfer into the...

whats your experience, some strains are harder to grow than others. I grew dutch passion white widow as my first strain, it was easy, grew fast, and was not that picky with nutes.