How big is the tank? I had a golden head sleeper and a tailspot in a 10g temporarily for a few weeks without any issue. If they have plenty of hidy holes, they should be goodOh my goodness he's absolutely adorable just peeping out . I have wanted a tailspot for such a long time, I love their derpy look and their personality. I would love to add one to my tank but I already have a golden headed sleeper goby as well as a jawfish. So I don't think it would be a very good idea unfortunately.