Even though you can’t cuddle with a fish, they can still be great pets. Most tropical fish owners explain how watching their fish actually relaxes them after a stressful day. One thing to consider, however, is the effort it takes to get a tank properly set up.
The absolute minimum you’ll need to keep tropical fish as pets is a fish tank, which can be made of either glass or acrylic. You’ll also need some type of lid, filter, water pump, water heater, thermometer, and light. Of course, you’ll also need some fish and some chemicals to ensure the water is suitable for the fish.