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I used to grow crazy plants in fish tanks...so I have a solid setup for c02 for aquatic use. Basically it's the tank + regulator, and then you see how much c02 you are pumping through a bubble counter (c02 output goes through some water, so you can count the bubbles). so right now I have oh...

DWC with fox farm nutes approximately full strength (as per instructions) at week 5, started flowering nutes 3 days ago. 80% distilled 20% filtered tap water (tap is PH 7.7, 290 ppm) water temp avg about 73, range 70-75 air temp 73 floor, 85 canopy PH I try for 5.7 but the range is 5.6 - 6.0...

Hi Everyone, I appreciate all your help so far (check here to see some older pics, and the history of the problems I've been having - https://www.rollitup.org/marijuana-plant-problems/337221-ph-problems-need-advice-pics.html - ) Anyway, the ph is well under control and I am adding Mg and Ca now...

DWC with fox farm nutes approximately full strength (as per instructions) at week 3 80% distilled 20% filtered tap water (tap is PH 7.7, 290 ppm) water temp avg about 71, range 68-73 air temp 71 floor, 80 canopy PH I try for 5.6 but the range is 5.5 - 6.8 but sometimes it ranges as high as 7.5...

Plant was doing really well up until about 2 days ago when I notice slightly slowed growth (did a water change 2 days ago). I might have given a little too much nute, but only what was recommended by fox farm (maybe a little less). PH is about 6.3, was about 7 when I measured old water that I...

ph & ec meters: how necessary are these. I have a digital ph meter, but it's really a pain because of the requirement of calibration solutions and storage solutions for the electrode. It gets expensive using the storage solution all the time. I am using r/o and am testing ph every time I...