You can consider placing your finger in the fish tank for your fish to follow as well. Some types of fish tend to bite, including Bettas, so do some research on your breed fish before putting your finger in their tank.
If you have pellets, use them for your training instead of regular fish food. If you use pellets for training rather than normal feeding, your fish will view them as a special treat.
Make sure to clean the hoop so that it doesn’t bring any harmful bacteria or substances into your fish tank. tie your hoop to a strong or pole if you’re uncomfortable putting your hand in your fish tank. Start with a larger hoop to make it easier for your fish to swim through.
Once your fish has mastered swimming through large hoops, decrease the size of the hoop to make the trick more challenging. Begin adding additional hoops for your fish to swim through for a more impressive trick. For more detailed instructions and tips on how how to teach your fish to swim through hoops, check out Train Your Betta Fish.
Use a treat on a string or a hood to lead your fish around instead of your finger. If you want your fish to follow you all around the tank, it may be hard for you to use your finger. Stick a treat on a hook, stick, or string and move it around the course so that the fish follows it. Make sure the fish doesn’t get the treat until it’s finished the course.