1、 Water level

Hydroponic maintenance is not to soak all the plants in water, but to put a part of the roots in the water according to the ratio of 7:3 or 6:4, and a small part outside the air, so as to absorb oxygen, otherwise they will die due to hypoxia

2、 Fixed value

The fixed value is to put sludge or small stones into the water to fix the root system. Pay attention to wash it before placing. However, some plants do not need fixed value, as long as they can grow well in water

3、 Nutrient solution

Nutrient solution is equivalent to the fertilizer for soil culture and maintenance. It is an indispensable nutrient source for hydroponic plants. Generally, they are sold in flower shops. They should be added according to the instructions. Do not overdo them, otherwise it will affect the plant growth

4、 Illumination

Hydroponic plants usually like scattered light, so they can be placed on the indoor windowsill. When the light is strong, they should be blocked and try to avoid strong light

5、 Change water

The water quality of hydroponic maintenance is very important, which determines whether the plant grows vigorously. Change the water frequently during the management period, otherwise it is easy to breed bacteria and affect the growth. If tap water is used, it's best to dry it for two days before adding it