20 high ideas?

[Andrew]

Ive got an extra 20 gallon high that i just moved by my reef tank. Its got some rock and sand in it now, plus a blue damsel. I plan on removing the damsel. Any ideas on what fish or what type of tank I should make it?

[selgado]

Do a seahorse or pipe fish species tank.

[Dubbin1]

Mantis shrimp tank.

[Andrew]

My mom would kill me if I kept a mantis shrimp. You should have seen her when she found my eel on the floor of my rom.