What can i put in an empty 10 gallon tank?

[Blightedchemist]

Fiddler crabs could do very well in a 10 gallon, halloween crabs get a little big. Seriously though, crabs are REALLY underestimated as pets. They are so interesting to watch, and feed... really fun to have! Especially fiddlers, with all of the arm waving they do!

Yeah! its funny to watch a fiddler get tough and act like hes 1000 feet tall with that claw waving it does.

I want another crab now...must...practice...self...control...