Can You Train Your Fish? Fish are way more than just something pretty to look at in your tank. They’ve got real personalities and behaviors—just like any other pet. Some folks even wear aquarium necklaces at trade shows, casually walking their fish around. During feeding time, some fish swim up for a little back rub like it’s part of the routine. You can even train them to do tricks, from swimming through mazes to shooting water at targets. Follow for more fascinating insights on how you can int