snakeguy101;4323441; said:you could keep a single specimen of red eyed or green tree frog in a tank that size without an addition. Frogs don't need a whole lot.
kearth;4323510; said:While I agree that frogs do not need a whole lot of space I think a 5 gal is too small for a red eye. Maybe a green tree but it would really be pushing it with a red eye.
Most frogs although they do not move a whole lot during the day are all over the place at night. In a tank that small you are probably going to end up with injuries, nose rubs, etc from trying to jump, move and not having a whole lot of room to do it. not to mention the stress.