I'm pretty sure that the white delta male I purchased about a week ago is blind, or mostly blind. I noticed whiteness over his eyes when I bought him, but I assumed it was his coloration and didn't even think that fish could be blind with cataracts. So far, I have not seen him touch his food, but he is otherwise healthy and active. Sometimes I think he responds to things being near him (like if I put my hand there), but other times he doesn't do anything.
Has anyone ever dealt with something like this? I don't know what to do. I don't want him to starve..But if he has gotten big enough to be sold in Petco, how did he survive all this time? I'm just confused and would like some pointers.
Unfortunately I don't think I kept the receipt for him (stupid I know), so I can't bring him back..