How to choose koi, the secret of changing water, weather and time

Sunny weather should be chosen, 7-8 am in summer and 9-11:00 in spring and autumn.

Hot season: sometimes change the water twice a day, before the sun comes out in the morning and after the sun goes down in the afternoon. But in most cases, change or inject water once a day after the sun goes down.

Cold season: it must start at 2pm and end at 5pm. Choose sunny weather. Naked eye observation of the water color is yellow or pink gray, smell smelly, sour, it is necessary to change the water.

In the outdoor pool, if there is melting snow into the pool, you should also change the water.

In cold season, the frequency of changing water is usually from October to December, once every 15 days, from January to February of the following year, once a month, and from February to March, once a week.

In order to keep the water quality clean and the water in the pond (tank) free from pollution, the containers for raising koi should be scrubbed every 1 to 2 weeks to remove the green moss on the edge of the container, so as not to affect the activities of koi and water bedbugs due to excessive fur.

But do not destroy the moss bottom of the ceramic container or cement pool wall, only brush the old moss with Mongolian knots on the surface, remove the mucus from the moss surface and protect the moss bottom.