This is my first salt water fish in about 8 years or so and it was finally the fish my girlfriend and i saw that we couldnt live with out. We are pretty sure its Inimicus didactylus (still waiting on a friend to come key it out).
He lives in a 35 gallon glass tank with about an inch of live sand on the bottom, ten pounds of live rock, 8 pounds of base rock out of my brackish water tank. Five poylps of some sort and about 100 aiptasia anemones, some little snails that keep the rock and glass clean rather well (snuck in on the rock and i love em so far).
He feeds on thawed frozen silver sides, shrimp or just about anything that i offer with a feeding stick.
Down side is being an ambush predator I cant put small fish in there that i might get overly attached to since he'll eat them eventually. Also i cant use shrimp of any sort as he's horribly fond of them for dinner.
I've always like cryptically colored animals more than bright flashy colors. So i've been drawn to things like sea robins, sea goblins, angler fish, some trigger fish and things like that. I know one other person with one in a fish tank and he keeps his with anglers so as soon as i can lay my hands on an angler large enough to live with him i'll give it a shot. Lately all the anglers have been too small.
I tried to add some pics of the little fellow two made it as attachments one was a tad too big so the side profile will have to wait a bit yet

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He spends most of the day buried half in the sand and would bury further when i get moved and double the live sand in his tank. He does walk around and occasionally makes a laughable effort to swim, I rarely see him on the live rock but occasionally i'll catch him hanging out on a piece.
Jason
PS i have a link to a thread done by a friend of mine on the venoms from scorpion fish but its on another fish board and i dont want to step on anyones toes by posting it so i'll try to figure out who to contact about doing so. I'd cut and post it but she has some work into it and i'd like to see if viewed in her format until i can get her ok. Its a great write up and made me VERY cautious around him. At least the LFS personel knew of and flat out stated how harmful they could be (they were also happy as hell to get it out of their tank).