Why do my goldfish turn black?
verbs up your fish dude
there are two reasons
one is age goldfish after a year can turn black
the other reason is they own ammonia burns because you either have to much ammonia in the container and the your not cleaning it well enough.
get an ammonia gear and test for ammonia if high do a 25% river change then a 10% water correction daily until the level is 0
Answers: Although goldfish can change colors black is not a common color. More than likely your fish is getting black spots due to recuperative from ammonia poisoning. Have you tested your water and is it a new tank? Ammonia will "Burn" your fish. When the fish starts medicinal, it will turn black, bu then eventually it will revert back to his normal color.
You involve to test the water and keep to a weekly keeping schedule of 25% water changes next to cleanings.
Sounds like they are getting burned by the water. Buy some AQUASAFE drops and put a few drops in. In a couple of days the black spots will dissapear
What variety of goldfish do you own?
Many breeds normally change color as they get elder.
