| Re: 90 gal tank I would go with a dwarf lionfish, that way you could keep some other fish with it and not worry about them becoming lunch... also, I think a volitan lion might get too big for a 90.
Some of my non-reef-safe favorites include the dogface pufferfish, niger trigger, huma huma trigger, and some of the non-reef-safe angelfish (though again I think a 90 might be too small for a queen/imperator angel). |