So does mine for past 2.5 years. He has his little cave home and doesn't venture far from it into open water.I have a Fire fish a High Fin Goby and a Candy Pistol shrimp that are all bonded and live together in the same tunnel system. They have been together for almost 2 years.Still to this date the Fire Fish only comes out at feeding time and when he thinks there is absolutely no one in the room.