when the water in the fish tank is changed again? If the water in the fish tank is changed again, it will take at least three days to release the fish. This way of changing water is different from the ordinary way of changing water, the ordinary way of changing water will not change all, only a part of it, so the water quality will not fluctuate too much, so there is no need to fish out the fish. This kind of water change is usually carried out when the fish have died or the water quality is very poor, and all the water needs to be replaced, so it is necessary to raise the new water before releasing the fish.
1, trapped water: fish tank water is the first thing to do is trapped water. Usually the water used for fish farming is tap water, which is not polluted, but after processing and disinfection by the waterworks, there will be a small amount of chlorine residue in it. Although it is harmless to human body, it has a great impact on fish, so it is necessary to remove chlorine from the trapped water first.
2. Filtration: The trapped water can be directly injected into the fish tank, but there will inevitably be some impurities. Therefore, it is necessary to turn on the filtration equipment and continuously filter for several hours, so that the impurities in the water can be completely filtered out. In this way, the water will become clearer and will not cause harm to the fish.
3. Bacteria cultivation: After filtration, bacteria cultivation should be started. Fish tanks should not only raise fish, but also create a good ecological cycle, so that fish can grow healthily, so nitrifying bacteria need to be cultivated. A nitrification system is established by pouring the culture into a fish tank or a filter box, and then turning off the light to explode oxygen to allow the nitrifying bacteria to multiply in large numbers.
