what to do?

[Beverly]

How about throwing out a few of the thoughts you've had for stocking the two tanks. Then we could offer opinions and suggestions. Might also help if you tell us what's in your other tank(s) so we know what livestock you already have.

Personally, I have not kept a predator tank, so I'm not a good person to advise on this issue. However, I've been under the impression that most predators grow pretty large.