Choose the best winter water for wintering water. It is better to use new water, such as rivers, lakes, reservoirs, springs, wells, etc., and add a small amount of old water (feeding used water). The old water is rich in phytoplankton and is conducive to photosynthesis and oxygenation.
Kill large-scale zooplankton, large-scale zooplankton, feed on phytoplankton, and also need to consume oxygen during the overwintering process, so measures should be taken to kill it.
Keeping the light transmittance of clear ice keeping clear ice should take the following two measures: one is to prevent snow from blocking bubbles, and the other is to keep clean snow and dust.
Pay attention to the supplement of nutrients, such as the discovery of dissolved oxygen in water drops significantly, that is, lack of water in the body of the water, you can chase fertilizer.
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