Here at Yume Koi, we take quarantine extremely seriously.

KHV is a very real risk, and will decimate entire collections in the case of an outbreak. We know this by having learned the hard way.

As such, we tread very carefully with this virus. Luckily, with our Japanese skills, we have made all of our chosen breeders very aware of the risks, and always ask the breeders whether the Koi have been heated up as Tosai (for sleeping sickness), etc, in order to asses the safety of the Koi we are looking to buy.

After shipping the Koi, we rest them and do preliminary parasite treatments. Then, once we know the Koi are in good condition, two rounds of heat cycling are carried out. This process usually takes about 10 weeks.

We always make certain that Koi are well settled after quarantine, and not suffering from Ana-aki, Fufusho, or parasitic problems. This ensures that the Koi has the best possible chance to be trouble free, and healthy. Bacteria pose one of the biggest threats to existing and new Koi populations. In simplest terms, each breeders Koi (and each different age, etc) will have been exposed to various strains of bacteria. In a healthy population, young Koi usually have several older fish introduced to the same ponds as the young fish. This is partly to induce 'sleeping sickness', but also gives the young Koi a chance to be exposed to various bacterias, and anti-bodies, hence making the young fish also develop anti-bodies to give them more strength. But, different breeders fish will have seen different bacteria. For this reason, it's essential that new Koi are quarantined even in a hobbiest situation, so that the new fish can have exposure and build more immunity before being added to the main collection of Koi.