On Thu, 12 Dec 2002 05:15:11 GMT, "Mentaloid"
wrote:

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



Quick way is to add baking soda a little bit at a time. You did not
give us a tank size so it's hard to tell you how much to add. This
topic has been discussed at the AquaBotanic forums. Also you can use
Calcium Carbonate to raise the kH. Both these methods work fast. The
slow way is to put some crushed coral in a filter bag and place it in
your filter. Don't use a lot though. Maybe a few tablespoons.