Why does good water for keeping fish turn yellow? The clearer the water, the harder it is to keep fish

Many beginner fish keepers like the water in their aquarium to be transparent and clear, thinking that such water gives the fish good ornamental value. In fact, this idea is wrong. We have all had this experience: tropical fish bought from the fish store need to be placed in your own tank and left to stand for half an hour before the fish are put into the tank. At this point we can see that the water brought out from the fish store is a different color from the water in our own tank. There is no need to panic, because old water always has color. Generally, good old water will have some deep yellow, deep blue and other very deep colors. As long as the water body is clear, this kind of water is fine.

The color of the water in an aquarium is mainly produced by soluble substances dissolved in the water. Usually, the food we feed tropical fish contains many color-enhancing additives, and these artificial pigments dissolve easily in the water and cause the water body to change color; we also regularly add some disease-prevention and treatment medications to the fish tank, and some of these medications also contain pigments, which will also make the water body change color; in a tank where the water has not been changed for a long time, there will be a large amount of nitrifying bacteria, and nitrifying bacteria will turn the water body of the fish tank dark brown.

But when the water body in the aquarium looks unclear or has white suspended matter, you need to be on guard. The cause of cloudiness is generally feeding too much solid food; the fish do not finish eating it immediately, and it settles at the bottom of the tank, where after soaking for a long time it decomposes into small particles suspended in the water. At this time we should increase filtration so that these suspended impurities are removed. In addition, microorganisms such as ciliates multiplying in large numbers in the water body can also cause the water body to become turbid. At this time we must add bactericidal medication to kill these ciliates and restore the water body to clarity.

As long as the water body in the aquarium is not turbid, a change in color is a normal change. But if it is not controlled, the color of the water body will become deeper and deeper, affecting the ornamental effect. The way to solve this problem is very simple. We can add activated carbon to the filter compartment to increase the filtration effect. Generally this can improve it. If it still does not work, we can increase the frequency of water changes to solve the problem of the water body changing color.

The above content comes from the internet

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