 鲜花( 0)  鸡蛋( 0)
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It might be ick, an infection of the parasite Ichtyopthirius.3 n4 i' ]& f* S! }0 z
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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.4 N2 w; q! A9 l- n0 }4 n! ]
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It might be hard to keep all the infected fishes, but treatment is necessary to protect uninfected ones.: P T$ o9 L9 v
4 h2 _" E6 T7 J' [8 {, N {By the way, is it necessary to have >20C for koi and goldfish? |
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