Selling my camel (or also called thornback) boxfish. He's about 1-2", needs peaceful tank mates, 70g or larger tank, lower flow tank. From what I read in a reef keeping magazine a Tetrasomus gibbosus (scientific name) is the least likely to release toxin and has the least amount of toxin available to release. I also read they get to 5 inches max, but other sites say bigger. I've had him for a couple of years and while he's grown a bit he's still small. He's been fine with corals and clams but has picked at snails and shrimp. $60
http://www.freshmarine.com/camel-cowfish.html