a good way to heal the torn fins is to put salt in your aquarium(if you don't already have salt in your aquarium). Do
NOT use table salt or epsom salt. Use either aquarium salt or, solar salt, or rock salt. If you have a water softner that uses salt, you can take some salt out of that and put it in your aquarium. You need to use 1 teaspoon of salt per gallon. If you have any questions, just ask.