Not Reef Tank Suitable
Not Suitable for Fish-Only Tank
These fishes belong in the Order Scorpaeniformes and Suborder Platycephaloidei as members of the Family Platycephalidae (Flatheads) consisting of 19 genera, with 60+ species. They lack a swim bladder, and bury themselves during the day and emerge to feed at night. Often called crocodilefishes, only a few enter the aquarium market.
For in-depth information concerning these interesting fishes, checkout Reef Fishes Volume 1 by Scott Michael (ISBN #1-890087-21-1). You can see a review of this exquisite book by visiting my Product & Book Review page.