Help deciding tanks

[Tiger_lover224]

I have 2 tanks that I want to make one African cichlid, and the other brackish. One tank is a 35 gallon hexagon (nothing is in it) and the other a 20 gallon (has my baby African cichlids in it) for the brackish tank I'm going to get a moray eel in it so I need help deciding which tank is best for it please help

 

[Terrance]

Moray Eel needs high-end BW. Its better to keep them in SW so that you don't have to keep up with the expense of salt for water changes.

Any other ideas? I'm not really a cichilid guy, so no recommendations about their setups.