In a message dated 98-01-22 04:26:47 EST, Brian writes: << I primarily keep East African rift lake cichlids. My tap water is perfect for such, being Malawi out of the tap (ph about 7.8, both GH and KH high enough not to bother mentioning). I'd like to keep some Apistos or West African dwarves, and I'm interested in the testimonials of those who have used the various black water extracts with water similar to mine. First, is using such a product feasible with water such as mine? If so, is one of the products significantly better than the others? Is there anyone who has gone from black water extracts to using 'peat tea' (boiled peat water) and found that it is more useful or as useful? >> I have found that the best black water tonic IMHO for softening water is Mardel's Tank Soft. It will lower pH some, but I also use pH DOWN, The one from Aquarium Pharmaceuticals, as it contains no phosphates. The other one by the same name I have heard uses phophoric acid, which will encourage algae growth. My apistos do well in water treated this way. Bob Dixon