I am definetley no expert. However, I also have a colt and I just came home and mine is doing the same thing, and this morning it was fine. I looked at my temp since it is warm today but mine is fine. Sometimes mine will look sad for a little while and then all of a sudden it is fine again. I normally do not move mine or anything since I think it would make it even more unhappy with me touching it. I would just give it some time, check your water for anyhting not normal. My hubby and I laugh sometimes and say maybe it is the atmospheric pressure or something on some days when things just do not look at great as others.
Good luck and keep us posted.

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Tami
55 gal hex .... FOWLR and anemones, Fluval 404, Remora Skimmer
24 gal Aquapod Reef with MH