A few years ago I aquired one with a second used tank I purchased. He was in my 77 for close to 2 years. At the time I wouldn't say my 77 was a full reef tank, but I did have a few soft corals. From the research I did when I had him, they're native to a cooler area of the ocean, i.e. not tropical. This guy seemed to do ok though, great at sifting the sand. From time to time he would surface and go on a 'float about'. They don't swim worth beans, so once he hit the flow my VorTechs created, he got tossed around pretty good. Occasionally he'd land in my BTA, get stung, curl up stunned for a few minutes & then continue his floating activities. He finally expired after almost 2 years.
I don't think they would touch corals since they spend most of their time burrowed in the sand. They are ugly & not sure of long term survival in the warm water of a reef. I kept him since he came with the used tank I purchased, but wouldn't go out & buy another to replace the dude.
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