I saw them for sale last December. After doing a lot of research, I was ready to buy them but they got sold that morning. Here is what I found. They are not reef fish, but found on sand flats. They hover, tail down, over a burrow in the sand. When spooked, they go hyper fast back into the burrow. Maybe PVC in the sand may make them comfortable? They are plankton eaters that should be fed often. I am soooo jealous.I will. I have yet to see any specific care requirements for it so I'm just trying to broadcast feed a variety of foods and do a couple night feeds as I think it may be nocturnal. It is very shy and cryptic even though it is the longest fish in a very peaceful tank.