2. With the continuous growth of moss, nitrogen fertilizer can be properly supplemented, and moss will grow beautifully.
3. Some people are green without moss, some people are green with water without moss, some people are black algae, and some people are membrane-like cyanobacteria, which actually glow under light conditions. From the lighting point of view, halogen spotlights can be tried if possible, and ordinary civil spotlights are enough, and expensive metal halide lamps are not needed. The color temperature is not high, but the spectrum is continuous and complete, and it is easy to bloom.