Crab like thing on my goldfish !

Question

theres this tiny crab like thing with black eyes and its seethrough, it was attached to my goldfish and then came off.. do you know what it is?

Answer 1

sounds like herpes pisces.........your fellas bin playing FINNY GAMES!

Answer 2

Obviously a parasite type thing, which is most likely from the gravel or another fish or even live plants. it may be harmful to your fish as many feed on the mucus membrane or the gills of the fish. luckily most of these things are crustaceans, so to get rid of them just buy some Anti-snail liquid treatment which very easily treats the water and kills anything like that. if you cant get anti snail anything like white spot or anti fungus treatment which has copper (you will know as it will tell you to remove any invertibrates from the tank before treating), as it  will kill the crabby things, just dont add pure copper as this will also kill the fish :S

Answer 3

sounds like fish lice, you can get parasite medicine from your local pet store to add to your tank which will kill this.