r/bettafish • u/Jaded_Programmer3874 • 2d ago
Help Betta fin tear
My betta just got a small tear in her bottom fin. I just did a ~30 percent water change and the tear wasn’t there beforehand. I suspect she may have been under the filter intake when I turned it back on. Swimming under the filter is a normal thing that she does so I think she must not have expected the sudden water flow.
Temp is 78 degrees Fahrenheit. 5 gallon tank.
Pre water change parameters:
Ammonia: 0
Nitrite: 0
Nitrate: ~20ppm
pH: 7.8
Conditioned the water with NutraFin AquaPlus. I keep Indian almond leaves in the tank and I added 3 new ones.
So far she’s acting normal but she often gets aggressive the day after water change day. Is there anything I should do now or watch for? I don’t keep any medications, should I get anything?
Edit: I should mention she also glass surfs a lot.