Hi! I have a 5 gallon long tank that I'm interested in putting...something...other than another betta in. Don't get me wrong; I love bettas. But after having bettas off and on since age 5, I'd rather try something new, preferably something that's not a fish. (Please no questions why I don't want a fish -- I'm just ready for something a little different if possible.) I've heard that pacman frogs can go in a 5 gallon, while I've heard from others that at least a 10 gallon is needed. What about a few ADFs? (african dwarf frogs?) Hermit crabs? African clawed frogs? Anything else? Thanks in advance!