Hey - Wondering if you guys can help me here. I've got REALLY soft tap
water, so soft I can't get any reading at all on my GH/KH test kits. Now
that I'm starting to do some CO2 injection to try to get my plants growing
fast enough all my clown loaches won't eat them before they die, my pH is
droping a little to far for my liking. What I'd like to do is find some way
of increasing my KH (CaCO3) so I can balance out the low pH caused by the
CO2. Any ideas?
Mark