Python Clean& Fill inquiry

[kenyi]

My 10 gallon tanks get a 50% change weekly. Larger tanks get closer to 30% weekly. I do not manipulate the ph value (that's something that can go wrong and forever having to adjust it).

I feel that the more we play with our water values the more chance of having things go wrong. I have no problems raising and breeding African Cichlids in 6.4-6.8 water. As far as my inverts go, I have a piece of coral in their tanks since they need to ingest calcium rather than to have it suspended in the water column.

I agree, I only mess with the pH of my African cichlid tanks. I test the water I'm adding, and test the tank water to make sure that it's all OK. However, although I CAN breed African cichlids without changing pH, it makes it a lot easier and I get a lot more fry out of the fish.