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Will using grow tents with the see through screens effect the amount of light the plant gets? Will it be effective in stopping mold/mildew? Im in week 5 flower and have noticed high humidity levels that have caused small cases of powdery mildew which i removed immediately. I don't want to lose...

Hey guys, so this morning I noticed a few leaves on my plant (3 total) had started forming powdery mildew. Not much at all, the leaves were maybe 15-20% effected... A little bit on the stalk as well, about an inch worth. I removed all infected parts, as well as some additional fan leaves in...

I recently purchased a R/O unit. I get 7.0 ph water now. After mixing nutes (fox farm and cal-mag) I have a PH of roughly 4.0 Question: Is it safe to bring the PH up to 6.5 using ph up? Or is that too much? * I do not want to add hard water to raise PH * Adding the r/o water after nutes have...

1) When using R/O Water, how many ppms of cal-mag is proper for a flowering/5 gallon plant? I add the cal-mag first, before nutes, and the R/O water starts at almost 0. Is 250ppm of cal-mag too much, too little, or just right??? 2) When using the feed/water/feed/water regimen, how many ppms of...

Hi yall, new guy here needs some advice...anything and everything you can say to help me is appreciated;-) I am growing a personal stash outdoors. I have access to RO water, which is great because the tap water where I live is horrid. Im using Fox Farms Soil, the red bag. I was wondering if...