Part of my guys sleep during the day, some during the night and a couple sleep when I am not paying attention to them, they are my oldest crabs and like to be hand fed , you can get them used to that if done enough. Strange but true! Source: Experience & common reasoning +++++. read more
Yes, much like other living species, fiddler crabs do sleep.However, they tend to only sleep when its between 75-85 degrees, asthis is when they are most comfortable. read more