goldfish tail problems
hi
i have had my goldfish tank for 6 months, its has had the same 3 goldfish in it since i got it! There has been no problems atall with the fish or tank, and they all appear to get on with one another, however i have just noticed that one of the goldfish's tail looks to have been shredded (it had a long flowing tail) and over 50% of it has gone. Has anyone got any suggestions as to why this has happened and what i can do to help, sort out this problem.
Thanx
ph 6.5
ammonia 0
nitrite 0
nitrate 15
these are fancy goldfish not pond type fish
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OllieCoxPhotography
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