How many pea puffers would I be able to keep in a 35g, could I keep them in there for life or will I need to upgrade later on? Also, do they become fully marine once they reach adulthood, and would I be able to keep more than one in the same tank as adult?
about how big do they have to be for you to be able to sex them? The ones I have my eye on are teeny tiney little cuties, like not even half an inch long.