The best way to remove moss from fish tank is to raise some fish that eat moss. This biological treatment method is much safer than drug treatment, which not only has no side effects, but also can improve the ornamental value of fish tanks. Although manual cleaning is effective quickly, it often treats the symptoms but not the root causes, so the moss will grow back after a long time. Only by changing the environment and feeding methods can the moss grow.

1. Moss mouse: Moss mouse is a common tool fish with slender body and downward mouth. Like a sucker, it can eat all kinds of algae moss. This kind of fish has a miscellaneous diet and is easy to raise, but it should live in clean water, and as a tropical fish, the water temperature should be kept between 23-28 ℃.

2. Black-line flying fox: Black-line flying fox is also known as the king of algae-eating fish, and it also has a good cleaning effect on moss. It should be noted that this kind of fish can't be raised alone, otherwise it will hide and not come out. At the same time, don't feed artificial feed frequently. If you eat too much artificial feed, it will also affect its eating algae.

3. Elf fish: Elf fish is small in size, but its ability should not be underestimated. It is a very good tool fish and can only eat algae, so the efficiency of algae removal is very high. However, the problem is that without algae, the fish will die soon, so it needs to be fed with other feeds.