why do puffers puff?
I have two puffers and have noticed them puffing up lately. nothing new has happened . maybe they have been doing this all along and I just now noticed them.
1 blue tang
1 blonde naso
1 maroon clown
50 hermit crabs
3" sandbed toped with crushed coral
2 overflows going to two bio towers and a 15 g sump
tank built into the wall.