Thanks for the advice, guys!! I'll probably set this up in full with gravel and everything next week!

I picked Indi to go in there for now because she's smaller than the other two, and I figure it would help her out a little to stretch her fins and get some good muscle tone. ;)

I'm debating on the substrate and think that I'm going to do black sand. I wish I could find something that was sand-like, but not as fine as the stuff normally found.

We shall see!