This is my puffer Boo.

He is in a 16 gal tank now but I am going to put him in a 40 gal ASAP. Puffers can not tollerate ammonia or nitrite because they do not have scales. It has to be at 0.0 or Boo will go dark which means the water is not right or that he is scared. Different puffers like different food but mine loves snails.
I have to go and give him a snail now. He's hungry.
Bye.