Fin rot refers to a number of bacterial and fungal infections that can cause a betta fish to lose fins, said Dr. Ireifej. Poor water quality is the most common cause, along with a tank that is too ...

It’s Not Normal for a Betta Fish to Lose a Fin – Here’s How You Can Prevent It 7 May, 2021 ... Either fin rot (which is caused by an infection) or fin loss (caused by external factors) ...

Fin rot can affect any fish, regardless of whether it lives in saltwater or freshwater. Yet, this condition is commonly seen in long-finned fish, such as betta fish, goldfish, and angelfish.It can ...