 鲜花( 0)  鸡蛋( 0)
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It might be ick, an infection of the parasite Ichtyopthirius.! K3 o8 D8 Y% v
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You can increase the water temp up to ~28C and give them drugs (basically Cu2+ ions), plus large quantity of water change. Google for further details.
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7 f; y0 l$ K l( E- QIt might be hard to keep all the infected fishes, but treatment is necessary to protect uninfected ones.5 q X3 {. @9 C/ F z, V# B
- B- w1 \% Q7 e$ \' _6 b* d8 M6 a, IBy the way, is it necessary to have >20C for koi and goldfish? |
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