55 gallon. ph 6.8mike316 said:yeah it's a little soon for them to start eating. Mine took about 2-3 days before they started to eat. Also becareful with using feeder fish if you don't breed your own. You can give your p's some nasty dieases. If you really want to feed them feeder fish you should keep them in a seperate tank and treat them just to be safe. I feed my p's blood worms and they love them.How big is your tank and what is the p.h. also. hopes this help and welcome to the board!!!!!! The people are real nice here too. they will be along shortly to help you too.