At the very least, make sure you have some plants or other places for them to hide. I had 6 in my 46 BF community tank, and now there are 3, and they don't like the bright lights. Mine stay hidden under some driftwood until feeding time or until the moon lights come on, then they are out and about. And I would say I would not add anything else to the tank. Hopefully you have good filtration. Good luck.