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?6 B( f3 h6 k' q# N! O: t
Thank you very much.4 @# l$ ~- w" X9 P' n0 Y$ {7 \' j