When raising the water, we must use the water which accords with the growth habit of the water.
Therefore, water can be used as a neutral pH value of water, which will be more conducive to the growth of water lilies, with no need to use a test paper to determine the pH value, in general, it can be used directly.
Like the tap water used at home, you can also use the water to raise the water, but it should be noted that if you use the tap water to raise the water, you must store it for 24 hours before you raise it, because the tap water contains a lot of chlorine, which will have an impact on the growth of the plant, may damage the roots, damage the leaves and so on.
The above two kinds of water can be used to cultivate water lily, but also pay special attention to the temperature.
You can prepare a tank of tap water in advance, and then put it outside, so as to ensure that the water temperature in the tank is basically the same as that in the basin, and that the water temperature is kept balanced, so that the growth of the lotus can be stable.
In general, there is no need to change the water for water culture, which can ensure that the nutrients in the water will not be lost, and the growth of the water lily is lack of nutrients.
But the water will evaporate, so you need to add water to the container according to the amount on time. Sometimes there are many green algae in the water after the sun exposure, maybe you will be too dirty, in fact, it doesn't matter. This situation is that the water lilies and algae will help each other grow, so you don't need to change water.
