i have recently put my male betta in my 29 gallon tank he did fine and his colors even got better but sometimes, like twice a day he will swim up against the back of the aquarium and open his gills REALLY wide. so wide that i can even see in his gills , why is he doing this?
betta is acting strange
- Thread starter fishdude
- Start date
The gill flaring is your betta's attempt at looking larger and imposing. Kind of like when a cat fluffs out its fur and hisses. He will also do this if you hold up a mirror to the tank.
ok thanks but also whats with the little red thing thats like a skirt that comes out of his gills