1, never use sediment in the selection of materials, because the gap between sediment is too small and the oxygen supply is insufficient, which is not conducive to root growth and is easy to cause root rot; At the same time, it is easy to muddy the water and affect the photosynthesis of aquatic plants.

2. Before laying the substrate, clean it strictly with clear water, and then soak it in salt water or potassium permanganate solution for disinfection. Finally, it can only be used after thorough cleaning.

3. The water temperature of aquatic plants in winter should not be lower than 15 degrees. In the northern winter aquarium, there should be a heating rod or thermostat to keep the water temperature, but the thermal insulation device should not be too close to aquatic plants, so as to avoid the death of aquatic plants due to the high water temperature. If possible, you can use a water pump to circulate the water in the aquarium, which is beneficial to heat dissipation and the growth of aquatic plants.