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It might be ick, an infection of the parasite Ichtyopthirius.7 `% f% ^/ }4 q1 d; x
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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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. W K7 d+ I- Z$ t8 J B. ]6 tIt might be hard to keep all the infected fishes, but treatment is necessary to protect uninfected ones.
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' d+ }7 \2 u9 m* J% z% P, d% n5 X qBy the way, is it necessary to have >20C for koi and goldfish? |
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