Gigs typically do not bury themselves in the sand and therefore do not require a sand bed. Although they often position themselves near the rock/sand interface, their foot attaches to the rock above the sand. Also, it is not unusual for them to move higher onto the rock work.
Haddoni -- like deep sand and will bury their foot
Gigantea -- like shallow holes which could be covered with sand, but mine have always liked being in the rockwork
BTA -- like deep holes where they can hide their foot and extend out
Magnifica -- like to be high up on top of rocks (versus in the rockwork) and prefer flat surfaces where they can spread out their foot like a fried egg.
Thanks everyone, I am looking for one that will stay in the rock as I don't think my two sand gobies w/pistols will like a nem on the sand bed by them.
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