Hello, I have already posted in another forum but did not get any answers but I am desperate!!! I have a mini cool cab...using UFO LED lights, net containers with clay pellets, top feeding system, airstone, and have the CO2 boost. I am having a major PH problem I am using distilled water due to the fact that I have crappy well water. I get PH down to 5.5 but in a matter of a 4 hours it is up to 6.2 and then in another 8 hours it is up to 7.2. WTF??? This has happened every day. the PPM is 970. What is causing the rise? Any ideas or tips will be appreciated...Thanks!