Low pH... a bad thing?
After switching over to using my local Chicago tap water from RO/DI I found that my pH had risen to a more acceptable level. This was a good thing as it was in the low 5's!!! Now it seems that for my CO2 to kick on and get good saturation, the pH ends up 5.9-6.2. Is this too low? Will this cause any problems? The fish and plants seem fine... I am sorry but I don't have a GH reading right now (if this is even a factor).
Chicago, IL 60640