I think there might be some different morphs. I've noticed that some have black extending through the back and some (like mine) have three symmetrical bands when viewed from above.
mbu puffers are one of the peaceful fully freshwater puffer fish. some of them are aggresive but most are peaceful. they are great community fish. i had one but i had to get rid of it. cuz it thouht my stingrays tail was food..... but now i want another one!
...I don't think I'd call it a community fish. Mine's been peaceful so far but everything I've heard says puffers can turn in an instant. I've read many accounts of Mbus being with fish for years and one day biting them in half on a whim.