My fish has a red sore on its body. What should I do?
External wounds and infections can be treated with a number of fish medicines, such as Ulcer & Open Wound Control. It is important to keep the water quality pristine, otherwise the wound will become re-infected. It is also important to find out how the fish got the sore / wound in the first place. If it was a one-off due to handling, then just try to be more careful next time. However, if it was caused by a heron or a bullying tank – or pond – mate, than you need to assess whether it could happen again. Have you got too many fish in the pond? Have to fish become too big for their aquarium?
