I have an 7" ID shark in a 120g that I believe has a fast growing tumor on his left lateral line. It is the same color as his scales/skin and just looks like a big bump on his sides. It did not cause him problems when he was smaller, but now that the tumor is growing it is starting to cause him to list to his side. Anyone ever have experience removing anything like this from fish before and could give me any advice? I am not going to a vet, I'd rather flush him or remove it myself, I just don't want to see it get worse and have him suffer, it does appear to be superficial as well, so it probably is not affecting his internal organs. Any ideas? help