1、草缸必须用灯吗？太阳照可以不可以？
Do you have to use a lamp? Can the sun shine?
答：光照是包括水草在内所有绿色植物赖以维生的最基本条件，因此水草缸必须使用灯光照明。太阳光对于养植水草来说是不适合的，容易生藻并且不可控，会使养草受到很大局限，并且观赏效果也差。
A: light is the most basic condition that all green plants, including water grasses, depend on, so they must be illuminated by lighting. The sun's rays are not suitable for planting grass, and they can be easily conformed and uncontrollable, which can make the grass very limited and the viewing effect is poor.

 
2、我应该买什么灯？成品缸里的灯行吗？
What lights should I buy? Is the lamp in the finished cylinder all right?
答：目前流行的计算方法是W/L，即根据缸体的大小来计算灯具的耗电量。对于阴性草来说，一般0.3~0.7W/L，阳性草则是0.7W/L以上（阴性草阳性草的区别见后）。这种计算方法不是完美的，但是对于尺寸“规矩”的缸有一定参考性。一般来说，这个规矩是，高度和宽度在0.4~0.6米之间，长度0.6~1.5米之间。太大和太小的缸都不适合这种计算方法~成品缸里的灯大多数是不行的，除了照明功率普遍不足外，灯管发出的光也不适合水草生长。
A: the current method of calculation is W/L, which calculates the power consumption of lamps and lanterns according to the size of the cylinder. In the case of negative grass, the average 0.3 to 0.7 W/L, the positive grass is 0.7 W/L (the difference between the masculine and feminine grass). This method is not perfect, but there is a reference to the size "rules". Generally speaking, the rule is that height and width are between 0.4 and 0.6 meters, between 0.6 and 1.5 meters in length. Too big and too small cylinder are not suitable for this kind of method to calculate the ~ finished most of the lights in the cylinder is not enough, in addition to the insufficiency of lighting power, the light bulb is not suitable for aquatic plants to grow.