I went to a local walmart today (bad idea) and saw two beautiful bettas with two outlandish cases of finrot. I complained to the manager and I got them for free. They're in such sad conditions I dont even know if anything right now will be helpful. I have two 2.5 gallon tanks with heaters but I wont have the time to clean it everyday.
Could I pick up two half gallons and try my luck? Water changes, aquarium salt, and a heater. Every day. Correct? How do the bettas die of finrot? I hate having fish die so I really don't want it to happen ><