deathly ill

I think my betta Drizzy is on the verge of dying. I posted a thread a few weeks ago about a large white spot that had grown on his side and no one was really able to help other than suggesting it is a tumor. The tumor now has black streaks on it that weren't there initially. His conditioned has...

I added Melafix to my betta's half gallon tank to treat slight fin rot on his tail, I added 5ml ( which I now realize was way too much) and when I returned from class he was floating on his side at the top of the tank struggling to swim. I immediately took him out and did a full water change. I...