1、 Place the substrate at the bottom of the container

Pennisetum can be directly soaked in water and grow in clear water, but the nutritional elements in the water can not meet its needs, so the plant will not grow stronger. In order to make hydroponic plants grow strong, a part of the cultivation substrate should be placed at the bottom of the hydroponic container

2、 Matrix selection

The substrate can be granular deer marsh soil, red jade soil, fairy soil or aquatic grass mud for raising aquatic plants in the aquarium market. It is no problem to put it at the base of the water body to fix the roots of the plant. If it is not convenient to obtain these materials, ordinary gravel, small gravel, glass ball, stone and other materials can also be used to fix the roots of the plant