2, although not resistant to strong light, but also need the right amount of sunlight to normal metabolism. Especially for plants maintained indoors, we must ensure sufficient sunshine. Under normal circumstances, the light in the morning and afternoon is mild and can be directly illuminated. At noon, when the sun is strong, you should shade.
Change the water frequently before the roots grow out, because there are many germs in the water and it is easy to be infected. After it grows roots, you don't need to change water, just add water, but when adding water, the water can't cover the roots, so leave half in the air to let it breathe.
4. The hydroponic lotus root does not need fertilization before rooting. After it takes root, it needs to be fertilized once a month. Fertilization means putting liquid fertilizer into water.