Originally Posted by vaygirl
Mine's big in a 10 gallon. Get the biggest you can afford and can fit wherever you need it too. Especially if he's got a shorter tail. They're MUCH faster and they're jumpers. Mine can jump 3+ inches. Happy hunting! :D
He's not even trying! I had a girl who could clear seven!
I think a 5 gallon would be too small unless its a squarish shape or like the hex-5 tanks. Sherbert was just under four inches with tail and didn't like the short back-front on his glass 5g. It will vary with the personality of your boy, yes.
Speaking on jumpers I HAVE had one that would on occasion hop up into the light-shield to get at a fly or gnat in it (standard curved plastic). He'd not do it again for a week but I made sure the light was never on when I wasn't at the desk.