I've had all of my fish that are in the tank for about two years now, and I preform a 20% water change every two weeks along with a gravel cleaning. However, my fish (which I believe it is a cichlid) is not doing well. In what seems to be a day he has grown a white bump on his head (tumor-like) and has begun to turn in a dying, belly up fashion. In the 50 gal tank with him are 2 neons and 2 platys. Now, one neon has begun to swim a little differently. He seems to reaching for the stars, or top of the tank.
I've removed the cichlid and put him into another container but it doesn't seem like he will last much longer. Should I have any concerns about the other fish? Especially the neon, should I remove him as well?
Thanks guys, I know this is my first post, but hopefully I can get some help, and at least learn what is (I don't want to say was
) wrong with him.
I'll take pictures tomorrow.
Thanks,
Justin
I've removed the cichlid and put him into another container but it doesn't seem like he will last much longer. Should I have any concerns about the other fish? Especially the neon, should I remove him as well?
Thanks guys, I know this is my first post, but hopefully I can get some help, and at least learn what is (I don't want to say was

I'll take pictures tomorrow.
Thanks,
Justin