I believe many friends have used fish tank filter cotton or raised fish before. But there are too many products on the market, I'm not sure how to choose. Today, let me briefly summarize the filter cotton for fish tanks.

Classification of filter cotton for fish tanks

Although there are various types of filter cotton, it not only plays an important role in ornamental fish farming, but also in water quality filtration. But there are two simple categories of filter cotton used in fish tanks.

1、 Fish tank filter cotton - physical filter cotton

Mainly used for filtering feces and food residues from ammonia nitrogen sources in fish tanks. Because these substances are filtered, the density is naturally higher, and some residues are not easy to slip away, resulting in poor filtering effect. There are many colors on the market, such as blue and green, but the classic one is white. Some names sound good, such as Magic Carpet, Magic Bag, PP Cotton, which are essentially physical filter cotton. Dense physical filter cotton.

2、 Fish tank filter cotton - biochemical filter cotton

This type of cotton is mainly used for cultivating nitrifying bacteria, and its density is not as high as physical filter cotton. Its internal expansion is a porous structure, typical of rattan cotton, with a relatively large thickness, just to provide more space for nitrifying bacteria to reproduce and expand their population. However, it should be noted that both biochemical filter cotton and physical filter cotton have the function of cultivating nitrifying bacteria, but the structure of biochemical filter cotton is more suitable for the large-scale reproduction of nitrifying bacteria. In the filtration system, the more nitrifying bacteria are reduced, the better.

How often do you wash the filter cotton of the fish tank?

1. Fish tank filter cotton is a place for cultivating nitrifying bacteria and may not be able to be cleaned thoroughly. Suggest washing once every seven days. In addition, when cleaning the filter cotton, rinse it with clean water in the sink. Tap water is not directly used. Filter cotton should be changed once a month, and polyester filter cotton should be changed every three months.

The replacement time of fish tank filter cotton can be determined based on the material. For synthetic fiber, it takes about one month at a time, and for polyester foam, it takes about three months at a time; Replace with biological cotton for about 6 months. Every time you wash, you need to check if it has become thinner and if the quality of the filtered water has deteriorated. If the density of the filter is not good, please replace it to avoid hindering the survival of fish.

3. Fish tank filter cotton is called bio cotton, which comes in various colors, densities, and hardness. When cleaning, first of all, its filtration system should be open all day, and the fish tank should have two layers of filter cotton. If the upper layer is not clean, it can be cleaned. When cleaning, be sure to wash it off without applying too much force.

Teach you how to clean fish tank filter cotton;

1. Be sure to cut off the power supply of the fish tank. Some friends are impatient or careless. It is very dangerous to take them out for cleaning when they appear. The safe way is to unplug and disconnect the power supply.

2. Then remove the upper cover of the fish tank to expose the control box, unscrew the fixing nut of the filter water pump, and take out the filter water pump.

3. Take out the dirty filter cotton and place it in the water tank. While pouring water, continue to press until there is no sewage flowing out. Then, put the filter cotton back in the same order as before.