Needs a Little Salt...

It was the first time in a while that I really sat down with my cat and watched the 5-gal tank for a while (shame on me!). I noticed two troublesome things:
1) One of the black skirt tetras had a recurrance of the white growth on the tips of its fins
2) One of the neon tetras had to constantly swin downwards to keep from floating to the top

I am much more concerned about the tetra, because I had never seen that kind of behavior. I looked up some information about swim bladder disease (assuming that's what it was), and the prognosis is not good. I performed a much needed water change, and went ahead with the Fungus Clear, trying to treat a possible bacterial cause of the swim bladder problem, while also treating the skirt tetra's white tufts. I also added a tablespoon aquarium salt I purchased. Yes, I tend to overkill.