110 g. tank - 6' X 18 wide; Can I keep rays in this tank?

[justinl]

the 6' would be great, but 18" just isn't enough width. especially if you're going to put live rock in there... you need a lot of open sandy area and a very stable rock structure. a collapse would prove fatal if a big rock fell on top of the ray. I would say minimum 36" maybe 24" if you really plan the sandy areas well. preferably a lot more honestly.

you'd also have to consider what kind of ray you're lookin at keeping. that' s pretty much all i can say about rays. don't know much about them.