 鲜花( 0)  鸡蛋( 0)
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It might be ick, an infection of the parasite Ichtyopthirius.+ S! K; J; [, b* L1 r
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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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; g& i6 Y+ L+ n5 y+ c% aIt might be hard to keep all the infected fishes, but treatment is necessary to protect uninfected ones. n3 v0 z, a+ J- K% E _
; J2 m/ l# |2 E1 LBy the way, is it necessary to have >20C for koi and goldfish? |
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