Thank you so much for replying! I am not sure how I missed your response. The red spot is on the part of the fish that is above the water. The fish is a fighter! It is still alive, eating, and trying to swim around the tank. The swelling on one side of its belly did not go away, so it is still...
Thanks for responding. I was hoping that someone has already seen something similar. I changed the water last night and added some aquarium salt. As of right now, the spot doesn't appear as swollen or angry looking, so it looks to have helped somewhat. I won't keep this poor fish alive if it is...
Hi! My neighbor was moving recently and they gave me their fancy goldfish. They set the tank up for me so I didn't look closely at the fish at that time. It is swimming upside down and has a very large red lump. What is this and is there anything I can do for it? I appreciate any advice you...