Tim, We're lucky up here in Seattle and our water is pretty soft. When we = lived on one side of town pH came out at 7. With peat it hit the low 6's = but we wanted 5's for fish we were spawning. Erik experimented with some = chemical ways of altering....hope he pipes up with the name of the = compound. The key thing here was to age the water. We would add a small = amount of this stuff drop the pH into the 2's (stomach acid) and as it = sat/aged it would gradually climb into the 5's. Don't want to do that to = your fish....kill them and your plants. We would them add the aged water = to the tank. Afriend uses waters of the world...and keeps adding it until = his plants melt. Now we live where the water is even softer, with no additives our bog wood = drops the pH into the 4-5's. Have to harden the water and raise the pH = for some of our fish. Kathy