Why Does My Goldfish Have Black Fin Edges?

Question

Why Does My Goldfish Have Black Fin Edges?

5 Answers

Answer Question

Answer 1

Your tanks ammonia level is too high.
Go to the store and buy some ammonia tablets and within a week or two the black on the tip of the fins should be gone.. Also do weekly water changes. This is what helped my fish/

Answer 2

It can happen when there is too much ammonia in the water. Get some Aqua cycle which is a beneficial good bacteria and add it to the water. Also, make sure that the filters are clean. It happened to me when I had put the fish on medication and had to take the carbon filters out.

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Answer 3

Well I'm here to ask the same question too! Heh ~

_anonymous .. I believe he is right.. ~

since I did put them on medication.. I changed the water 45% and cleaned the filter with the water tank ~

Answer 4

It may be that another fish bite the fish that has black fin edges. This happened to my fish before.

Answer 5

Your gold fish is not pure breed if it had this color already.But if its color is changed after changing water and gravel color then its a natural phenomena where insects and other animals under go an apparent change of color according to the color of their environment to hide themselves in a better way from enemy.