I need some help trying to bring my fish back to life! I have a betta in a 5 gallon tank. He started showing signs of fin rot a few weeks ago. I started doing 25-50% water changes every 3-4 days. I purchased maracyn and ich-x and used for 5 days with no sign of improvement, but no worse, so I stopped using. Yesterday I saw he had a hole in his fins. I’ve been using aquarium salt at every water change, tested the water and nothing seemed too off. I removed some deco that could’ve been too rough. I just don’t know how to help this little guy. 😞