It is cause by poor water condition and bacterial infection.
If untreated, the body of the fish may eventually rot.
Infested fish should be isolated and treatment must be immediate.
For tail & fin repairing Direction:
1. Isolate the sick fish.
2. Add one drop of this medication for every five liters of water.
3. Add a tea spoon of Baxter Medicated salt to speed up the cure.
4. Change all water and repeat step 2 & 3 daily till fish cure.
5. Return the cure fish into the show tank.