I purchased these two as Hawaiian dwarf anglers. Feed on live prey. Selling as I am taking my tank in a different direction. $60 ea. Local pick up in zip 11788 Suffolk County , NY.
I was told they dont get bigger than 3" or so. I dont know the species. They feed on live guppies and ghost shrimp but i believe they have taken smaller fish in my tank(small firefish, etc.) as they disappeared. I have them in a 34g Solana which i was going to take down but have decided to keep. Pm if interested in purchasing.
unfortunately you are probably correct about them eating your firefish. i had a 2" a.maculatus that ate a 5 1/2" red spotted blenny. they should be kept in their own tank.