tank mates

Yes, Tell what i can keep in my 90. I have to have atleast one eel. Im selling my girlfriends salt eel because im going to a smaller salt tank. So i have to buy a fw eel. I want color ful big fish.
 
I don't know anything about cockatoos, but rams only grow to like 3 inches...I'm guessing they would make a nice snack for any eel. To me, a 90 gallon tank is too big for rams anyway. I think that with a tank that size, you should go with a few larger fish, or a few large schools of community fish. Rams are probably better suited as a "centerpiece fish" for tanks in the 20-55 gallon range. That's just my opinion though.
 
You need a big bruiser in that 90g tank with an eel. Can try to go for either Red Devil (A. labiatus), Jaguar (P. managuense), Midas (A. citrinellus -- the one on my avatar), three-spot (A. Trimaculatus), Red Terror (A. festae), Black belt (V. maculicauda), V. bifasciatus, V. synspilus, and many more.

Also, the eels you mention can get pretty big. I think you should get 125g tank or bigger.
 
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