When the Brazilian wood is hydroponically cultivated, one end with wax is put on it, and the one without wax is put in water, so that it can better absorb water and promote germination as soon as possible. The wax at the end with wax can help lock in the water, and the water will not be lost. Note that it is best to use pure water during hydroponics. If tap water is used, it should be dried before use, and the water temperature should be close to room temperature. When there is no water, add water in time to avoid dryness.