My betta had never had any fin problems until moving to an older dorm on campus. (I'm a college student) After day one of having his tank set up, his fins were SHREDDED. (Hes a veil tail and they were ruined about halfway up)
In a panic I medicated him for fin rot, but having never dealt with it before I didn't know how soon to expect results. Over winter break, I brought my fish home, and saw no issues. Brining him back after break, fins shredded again. Curiously though, I did not treat him for fin rot just to see if it healed on its own in the same amount of time as when medicated. It did! Two weeks later and his fins look totally normal again, minus some of the ends missing, but everything has healed back together nicely and no more fraying or tatters.
It's getting close to water change time, and I'm afraid to change it because every time I do his fins become a wreck here! Could there be something in the pipes in this old building doing this to his fins?
If so, is there something I can treat the water with to prevent this?
I have a 5.5 gallon filtered tank.
Hes not shredding them on plants and decor because he NEVER has issues when home.
I treat the water with bettasafe I believe, and have never had a problem at home. (I live in a small town though and go to school in a city, maybe it's the city water?)
I clean the tank every 2 to 3 weeks with a full water change since its difficult to maintain a cycle while I travel back and fourth between home and school.
Could this be caused by high/low PH? Because if thats the problem I'd like to pick up PH Up/Down while I'm out today. Anybody have any ideas?