The fish nitrifying bacteria capsule should be unscrewed, and the nitrification system can be established faster by pouring nitrifying bacteria after unscrewing. Nitrifying bacteria is a kind of beneficial bacteria in fish tank. Its main function is to transform ammonia nitrogen in water. Ammonia nitrogen itself is harmful to fish. Through the transformation of nitrifying bacteria, it can be changed into nitrate, thus avoiding the impact on fish health. Therefore, it is particularly important to cultivate nitrifying bacteria.

1. Add organic matter: To cultivate nitrifying bacteria, the first step is to add organic matter to the tank, generally choosing fish food or shrimp segments. The purpose of adding them is to let microorganisms decompose them, and then produce ammonia nitrogen, which is the raw material of nitrifying bacteria. In this process, the water quality will gradually become turbid.

2. Nitrifying bacteria: Generally, nitrifying bacteria are poured into the tank together with organic matter. There are two kinds of bacteria, one is nitrite bacteria that converts ammonia nitrogen into nitrite, and the other is nitrite bacteria that converts nitrite into nitrate, both of which are indispensable.

3. Turn off the lights and explode oxygen: Nitrifying bacteria are aerobic bacteria, and they will die under the influence of light. Therefore, it is necessary to turn off the lights and explode oxygen when cultivating bacteria. Generally, after 48 hours of oxygen explosion, the water quality will change from turbid to clear, which means that the nitrification system has been established.