I work at a pet store but cant tell what this is one of the people I work with says it looks like he scrapped his body on something and another said it looked like an ulcer not sure what to do worried just did water change. added aquarium salt cause I thought it was fin rot. he mostly stays in his house and doesn't swim as much. any ideas? its not something serious I hope. new to this trying to upload pic not working
Looks like physical damage to me. I'd recommend frequent water changes and see if it improves.
Tifftastic
"With your powers combined . . ."
I agree it looks like an injury and to do water changes. I would also remove anything that has rough edges. The added salt can also help him to heal quicker.
Especially the one in the picture with the small holes that it may try to get through for food particles...