in a small household fish tank? It is relatively simple to change the water in a small household fish tank. First, find a pipe, put one end in the tank and the other end outside, and the position should be lower than the fish tank. Then suck into the tube and immediately put it into the basin, so that the old water can be pumped out by siphoning. Generally, do not pump too much, about a quarter of it. After pumping, new water needs to be added slowly from the wall of the cylinder.
1. Trapped water in advance: Because most of the water used for fish farming is tap water, it is necessary to trap water in advance. The way to trap water is very simple. After collecting the water, you can put it in the sun. The time of being trapped in the water is usually one to three days. In summer, the temperature is high, so the time is shorter. In other seasons, it is a little longer.
2. Water temperature change: The water temperature must not fluctuate too much during the water change. Therefore, it is better to measure the water temperature in the fish tank in advance, and then mix the new water according to this temperature, and add cold water or hot water to it. Keeping the water temperature consistent also allows the fish to adapt more quickly to avoid stress reactions.
3. Water change cycle: Usually, there is no fixed cycle for water change. Therefore, the size of the fish tank and the feeding situation are different, and the speed of water quality deterioration is different. As long as the water is changed before the water is turbid, it is generally between five and seven days. It is not good to change water too frequently, which will stimulate the fish.
