fish tank is clear but a little light yellow, there are generally three reasons. The first is caused by feed, because it is not eaten, it becomes residual bait, which discolors the water after dissolution. This situation needs to be filtered slowly, and it will be alleviated after a period of time. The second is that nitrifying bacteria are unstable, which requires frequent water changes to improve water quality. The third is due to the older reproduction of ciliates, which need to be eliminated by drugs.
1. Change water regularly: The simplest way to make water clear is to change water regularly. By changing water, the content of organic matter in water can be reduced, and new water can be introduced at the same time, thus playing a role in improving water quality. It should be noted that the water should not be changed too frequently, usually once a week, and the amount of water changed each time is about a quarter of the total amount.
2. Strengthen filtration: If the fish tank has filtration equipment, the water quality can be kept clear, but the filtration equipment will age after a long time, and the effect will be reduced, so it needs to be cleaned or replaced in time. Cleaning is mainly aimed at filter cotton, other filter materials should not be washed casually, otherwise it will cause damage to the nitrification system.
3. Chemical method: Chemical method is to use some chemical reagents to improve water quality. For example, flocculant can adsorb particles in water and sink to the bottom, thus making the water clear. However, it should be noted that the amount of chemical reagents must be strictly controlled, not too much, otherwise it will be harmful to fish.