3neko
Fish Fanatic
If this is in the wrong spot then tell me so I can apologize, I didn't see a place for goldfish.
)
What would cause a goldfish to develop black spots all over? I have a friend that has a goldfish(it's about 5-7 inches long, blind, and very old) in a 10 gallon filtered tank with an algae eater(?).

What would cause a goldfish to develop black spots all over? I have a friend that has a goldfish(it's about 5-7 inches long, blind, and very old) in a 10 gallon filtered tank with an algae eater(?).
