thanks. they're a really fun species to keep. if your tap water is at least 7.8 PH you should not have to buffer at all. i don't. their fry are really sensitive to water changes ime. theirs is the one tank that i don't do many water changes in. even a 10% change kills all of my fry if they are smaller than 1/4". they are born tiny and grow really slow. i only change the water in the tank about every 2 months. i just put lots of plants in the tank to keep nitrate levels from getting too high and clean out my filter media regularly in a bucket of tank water from another tank. i'm a water change aholic so it's really hard for me to leave their tank alone. that might be a perk for some people though.dwarfpike said:Nice. Caudopunks are the one rift species I've always wanted to keep, but rarely see them available. Plus, I don't like messing with tap water if I can avoid it.