I'm just enchanted with these little guys. They are rather aggressive, so the tank is heavily planted and there is a cave and lots of hiding places for them. And I do not have any other fish in with them, as they are fin nippers. The tank is a 20 gallon long, so they are doing really well in all that space.
Here's a pic of their tank. Unfortunately the puffs themselves are too small and quick to get their picture taken!

