Walking Batfish
The walking bat its like an angler in its diet and will eat any fish the fits in its mouth. Its an ambush predator and i believe that there are three kinds. A Longnose, a Shortnose and a polka dot. All are cool but the polka dot one is a little cooler i think. You could house them together as they only eat small fish and they get to be like 15". They prefere dim light but as long as you dont have intense light they should be fine. Also not alot of water flow, they are not the best swimmers. BTW they are not that expensive, they are just not very common in the trade. Add lots of algea such as Halimeda and Caulerpa for them to munch on as well as small damsels. Add lr in a similar fashion t a shark tank so that theres a ton of open space but also alot of hiding spots. If the rock work is flatter its better for the fish.
Longnose Batfish (aka walking batfish): Ogcocephalus corniger

Polka Dot Batfish: Ogcocephalus cubifrons

Shortnose Batfish: Ogcocephalus nasutus

well thats all i got, email me for more questions at
Rara7465051@yahoo.com