http://forum.aqua-fish.net/ A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en http://forum.aqua-fish.net/?topic=one-of-my-goldfish-fantails-eye-is-bleck#1 fishes eye is black is that normal? original post: August 23, 2007, 11:39 pm procharger 2008-05-04 http://forum.aqua-fish.net/?topic=one-of-my-goldfish-fantails-eye-is-bleck#2 Yes. It is normal. Sometimes humans have different eyes colours as well. Fishes may change their eyes’ colours because of injuries in addition. If so, they may be blind or it disappears later. jan 2008-05-04