Purchasing sand sleepers

[kien]

I am also in total agreement with you Adam. There are fish who need to sleep and fish who do not. As you said, some of these fish have evolved for millions of years and have adapted to sleeping habits. If you're lucky, the sand sleeper will learn and adapt to sleeping somewhere else like in a cave or under a coral. However, there is probably a very good reason why some fish never seem to be able to adjust. If they are a much older fish (adult) they are probably set in their ways (to sleeping in the sand). All of my wrasses sleep in sand despite there being tonnes of nooks and crannies. And I don't even have that much sand. 2" at most. Often times I can see a part of the wrasse exposed in the sand while they are sleeping.