We're expecting kid # 2, so the fish room will be turn into our son/daughter's room.
The bichirs will just not able to co-exist with the rays (8 rays) in the 540 gallon...
Besides, they will be outcompete for food with the aros and big datnoides..
I can get back into them later on, maybe we'll build an addition to the house and I can turn that into a fish room again.