OK, so I know it says you aren't supposed to mess with pH unless its really bad, but the pH of my tap water is below 6.4 and I don't know how far below. My LFS (actually a really really great place with good info) recommended pH 7.0, but it causes these incredibly annoying algae blooms everywhere and that drives me so crazy. All the neutral buffer things seem to have the phosphates that cause that, but I don't want to go messing with pH up or down. I have corys in one tank, a betta in another, a few rasboras coming into another and one semi-aquatic newt who is ill and who I do not wish to stress. Any suggestions?