gold fish fins breaking

Question
i have a small aqrm. two angel fishes , two gold fishes , two small fishes and one blue color fish with white patches( dont know their name). whenever i put gold fish , their fins become break. water is clean , filtered. i put high graded feed for them. i live in pakistan. here temp is normal. last time gold fishes were found dead with no eyes. kindly inform me about the problem.

Answer
Adnan

 Not sure how small your tank is but I can tell you it is over crowded. Goldfish are cold water fish and angels are warm water. The tank is not suitable for the fish you have in it. Goldfish are also very messy fish and pollute the water. Anytime a fish dies in the tank and is not remove right away the other fish in the tank will start to feed on it. You should pick what type of tank you want, either cold water or tropical and then fill it with the right kinds of fish. What size tank do you have? If you need any more help just let me know.