Betta Fish Diseases and Emergencies
Hello everyone, this is my male betta fish that I have had since December 2019.
He is in a 5.5 gallon tank that has a heater and filter. The temperature of the tank is always 80 degrees F.
In this tank, I keep 2 zebra danios and 1 guppy fish.
I have noticed that his fins became WAY smaller. He...