Did the fish tank turn green?

Green water is good for fish to some extent. I'm not so worried about this problem, especially your filtering is so awesome. . It is suggested that you might as well buy a pump with higher power, preferably one pump per cylinder. There is also a change of water. It is not good to change it every four or five days. For a long time, after two weeks, or the water body has no odor (except to make up for the usual evaporation), it does not need to be changed. Because the bleaching powder of water is very strong, it is easy to get sick when changing fish. You can change it by siphoning three quarters at a time. The rest depends on your personal needs. . . joke