OK so I have a 90 gallon tank sitting unused with a beautiful stand my dad made for me and I figured this coming spring when we buy a house I'd like to get it set back up to quench my thirst until I'm able to get the big tank. I was just wondering if a 90g would be too small for a few gulper catfish? I was thinking like 3 maybe? Just wanted to get peoples opinions on this....thanks!