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It might be ick, an infection of the parasite Ichtyopthirius.: f- W6 G, R, k! ]
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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.2 f" q8 H2 r' e/ h2 b. P) H6 m* f
' o: m0 q C; X% Y4 r: vIt might be hard to keep all the infected fishes, but treatment is necessary to protect uninfected ones.
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By the way, is it necessary to have >20C for koi and goldfish? |
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