My cousin's betta's fin fell off. Why did this happen th poor fish is still alive but dosent move much.
Answers:
There is not much info here about the conditions that this fish is in ie: water parameters, size of tank, filtration, water changes, etc. but if I have to guess I would say that it is most likely due to lack of sufficient water changes and filtration. Have your cousin do a large water change, 50%, and add some salt to the tank/ bowl as well as some bacterial medication such as melafix to have a chance at saving him. Then do another 30% water change in 2 days and a 20% 2 days after that. Then keep him on regular 50% weekly water changes minimum, but more if he is in a bowl w/out filtration. If he is in a bowl then do water changes every 2-3 days.
is it old if it is it will die
because the water wasn't changed out often enough. it could be bacteria or nitrates or nitrites.
Poor water quality has caused the fish to get either fin rot or columnarius. Either way this fish has a serious bacterial infection. He needs a clean tank, aquarium salt, and a good antibiotic such as bettafix or Maracyn.
