whichever kind of sand you please. but with that depth, i would go from more corse to fine. be sure to have plenty of sand stirring snails (nassirus) in the refuge.
anemone shrimp! https://www.liveaquaria.com/category/525/shrimp?c=497+525&r= and clown gobies plus a pipefish or two would be great. with pipefish, you should employ some paul b feeding methods for success
anemone shrimp! https://www.liveaquaria.com/category/525/shrimp?c=497+525&r= and clown gobies plus a pipefish or two would be great. with pipefish, you should employ some paul b feeding methods for success