| KFG: It all depends.
As Peter Waddington points out in Koi2Kichi, if your quarantine is not fully established [as good as having them in their own pond], then you have to balance the risks. ... the risk to the new koi of being harmed by an unsuitable quarantine, and the risk to the existing koi of being exposed to an unquarantined new fish.
There are no parasite free koi, except dead ones. |