If you are bitten by a betta fish, it is important to wash the wound with soap and water and apply a bandage. If the wound becomes infected, or if you have any other symptoms of illness, see your doctor immediately.
Can you get sick if your betta fish bites you?
It is very rare, but yes it is possible to get sick from a fish bite. The most common infection that may result from a fish bite is cellulitis, which is a bacterial infection that spreads through the skin and can cause swelling, redness, pain, and fever. The infection most commonly occurs when your betta bites your hand or arm.