The green water in the fish tank indicates that the algae in the tank is increasing. At this time, it is necessary to shorten the water change cycle so as to improve the water condition. Usually every three days to change the water, the amount of water in about one fifth, too much is easy to stimulate the fish, is not conducive to their growth. The situation usually improves after a week, and then the water change cycle can be changed back to normal.
The method of biological control is even simpler. You can raise some fish or shrimps that like to eat algae. The main fish are scavengers, moss rats, black line flying foxes, and so on. The choice of shrimps is much wider. Most freshwater shrimps will eat algae. The common ones are Macrobrachium Yamato, Macrobrachium fimbriatum, and black shell shrimp. It should be noted that mixed culture must ensure the safety of the original fish in the tank.
If you want to completely remove algae and no longer break out in a short time, you can use drugs. The commonly used drug is glutaraldehyde, which is effective against black hair, filamentous algae and blue-green algae. When algae erupts, 5 milliliters of glutaraldehyde with 2% concentration should be added for every 40 liters of water. During the prevention period, the same amount of drug can be added to 100 liters of water.
In addition to removing algae, we should also pay attention to preventing the growth of algae at ordinary times. This kind of plant is particularly vigorous in the condition of sufficient light, so we should pay attention to avoiding light at ordinary times, try to avoid direct light in the water tank, so that there will not be algae explosion.
