? Recently I've noticed that my Red-Capped Oranda goldfish, Bacardi, has been growing what looks like thick blisters over his eyes. They don't seem to be bothering him, and he has no trouble navigating the fishtank or finding food at dinner time- but I'm not sure how well he can see. None of my other fish seem to be affected by this weird condition... Should I be concerned? If so, what should I do ?
Thanks!

Take him/her to the vet because I'm not sure but I think it may be eye crap

Normally these goldfish are bred that way and live their lives quite normally. However, I do fell that it is cruel to do this.

This should not happen to red cap oranda's. Without seeing it its hard to tell exactly what it is. It most likely is a fungus or something like pop-eye. This does not always affect other fish in the tank, but it is a sign that your water conditions are not ideal. I would take a water sample to a fish store to be tested for first; nitrate, ammonia, nitrite. And see how they turn out, maybe consider picking up some type of anti-fungal medicine or something of the sorts.