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It might be ick, an infection of the parasite Ichtyopthirius.' e' O: d6 L5 g4 _% G: S
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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 q3 C( _9 Z& {2 _+ j
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It might be hard to keep all the infected fishes, but treatment is necessary to protect uninfected ones.9 E+ Y6 h; V8 |& ]" s
5 q0 }/ U) a& ]! @- c) l; e+ ]By the way, is it necessary to have >20C for koi and goldfish? |
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