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aaron118_gw

Fish flashing

aaron118
18 years ago

On Sunday I bought 2 small koi and stupidly didn't quarantine them and put them in my pond straight away. Since I put them in 1 has been hiding up nearly all the time in the plants, but the other one has been a bit more active swimming with the other fish. Today I have noticed a lot of my fish flashing and trying to rub against a drop in my pond (where it goes from about 2 ft to 3 ft). What does this sound like as I have read flashing usually means parasites? What do you think i should do and what treatment will solve the problem, something like malachite green?

Many thanks for your help

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