How do mandarin's sleep? FYI he was just sleeping :o)

[mike31154]

My mandarin(s) are totally out of sight once it gets sufficiently dark in the tank. They find a spot in the rockwork, so the catch at night with a light scenario is not going to work for me. Surprised to hear of others experiences of these guys sleeping out in the open on the sand. The only critters with fins that are visible in my tank after lights out are the Maroon Clowns, nestled into the BTA. All the rest are in the rockwork.