A few weeks ago a neon tetra got stuck in my siphon hose. He escaped, but got a pretty bad sore on his tail in the process. I've been watching him, to see if he would get better on his own, but he just gets worst. The sore on his tail is still visible, and his colors are horribly dull. He's also lost a bit of weight, and is dwarfed by the other neons.
Is he a goner, or is there anything I can do for him?
Is he a goner, or is there anything I can do for him?