My friend gave me four golden fish and a big fish tank. But after two month, these four golden fish all died. I don't know why. I usually have them in the temperature about 22-25C. Feed them once a day, usually at night. I think it maybe is infected by some virus or bacteria. Because after the golden fish died, we found that their tails all are damaged. At here, I ask for some having experience why? ' j+ l7 q" N' N) ]4 vThank you very much. 7 Q) R) z) }0 L. @+ O; R / A+ ]4 A$ T& rXiaoxiao