The sediment at the bottom of the fish tank can be cleaned when changing the water. Prepare a hose, insert one end of it into the bottom of the fish tank, then suck it from the other end, and put it below the bottom of the tank, using the siphon principle to draw water from the bottom, but also bring out the underlying sediment, provided that there is no bottom sand. If there is bottom sand, the lower sediment will not be easy to clean up.
1. Residual bait: If the amount of feed is not well controlled at ordinary times, so that too many fish can not eat, some will become residual bait and settle to the bottom of the water. As an organic matter, residual bait will produce ammonia nitrogen after decomposition, which is harmful to the health of fish, so it must be cleaned up in time, and feeding should be reduced in peacetime.
2. Fish excrement: In addition to the residual bait, the most important sediment is fish excrement, which is similar to the residual bait and will pollute the water quality, so we must pay attention to cleaning up. There are many ways to clean up, in addition to cleaning up when changing water, you can also strengthen the filtration, so that it can also be discharged.
3. Bacterial film: After the nitrification system is established in the fish tank, the nitrifying bacteria multiply in large quantities and form a certain bacterial film. This will not have any effect on the water quality, but it will reduce the ornamental value. It looks dirty. You can raise some clean fish, and they will eat it.
