How to change water less when raising fish?

I just want to talk about how to reduce the frequency of changing water in fish tanks today. It is impossible not to change water, but it is actually very easy to reduce the frequency of changing water. There are some methods that many fish friends know, such as reducing the density of pet fish, raising fish in straw tanks and reducing feeding. These methods are called reducing water exchange? Three traditions? .

May I recommend it today? Three new ones? , is my summary of the three ways. First of all, these methods are not new, but many people are not familiar with or understand them. Let's list them together today and analyze the scientific logic behind them.

Cuckold your fish tank! Green radish is very famous in the aquarium circle, but there are not many friends who really use green radish in fish tanks. As mentioned above, the way to reduce the number of water changes in fish culture in straw tanks is that aquatic plants can absorb nitrate in water, thus achieving the purpose of reducing water changes. However, not every fish tank is suitable for aquatic plants, but almost every fish tank is suitable for green radish. Many friends look down on green radish. There are many varieties of green radish, but only one is common in the aquarium market. What's that called? Green leaves and green radish? In fact, there are yellow-leaf green radish, mosaic green radish and so on. Moreover, the green radish is a veritable alien species. The best thing about green radish is that it can grow not only on land, but also in water and even on trees, because it is very powerful? Air root? .

There are two main points in growing green radish in fish tanks.

One is to protect the roots of green radish. On the one hand, the root system of green radish is toxic to some ornamental fish, on the other hand, it will also affect the growth of green radish. Therefore, it is best to fix the roots of green radish with gauze or mesh, so that vegetarian and omnivorous fish can't eat it. The other is the lighting problem. Green radish likes shade, so it's best not to give it direct sunlight. By the way, one more thing, green radish is native to tropical areas and can't tolerate low temperature. Room temperature and water temperature should not be lower than 15 degrees.

Effect: According to my experience, if you change water four times a month, you can use green radish once.

A good friend of the fish tank? zeolite

Add a good friend to your fish tank! Few people know about zeolite, let alone how to raise fish with zeolite! Zeolite is also called zeolite. Ammonia-absorbing stone? , it has a higher nickname molecular sieve? . It can adsorb toxic ammonia nitrogen in water. The purpose of changing water is to reduce nitrate, which is changed from ammonia nitrogen. If ammonia nitrogen is reduced from the source, it is actually a disguised form of reducing nitrate, and zeolite has this magical ability. There are two kinds of zeolite in the market, one is green, which is widely used for agriculture, and the other is white, which is widely used by fish farmers.

Usage: Prepare two copies of zeolite, put them into two mesh bags respectively, use one copy each time, replace the other copy after one week, and put the fished zeolite on the balcony to dry. After another week, put the first one back in the fish tank, put the second one on the balcony to dry, and so on. Yes, zeolite can be reused. How many kilograms of zeolite per serving depends on your own wishes. The standard is simple: the more the better.

Effect: If you change water four times a month and use zeolite, you can reduce it twice.

Mysterious fish farming tools

Find a bodyguard for your fish tank! This thing is very mysterious, and more than 90% fish friends don't know its name. It's called. Algal screen? It is another great invention of Yuyou after the anti-qi is lifted. Very useful, cool and mysterious! Algae screen was originally the secret weapon of seawater tank players, and was later introduced into freshwater fish tanks. However, this application, that is, in recent years. It was a DIY artifact of a group of fish farmers in the early days, and now it can be mass-produced. Its principle is to reduce ammonia nitrogen and nitrate in water by algae bloom. As we all know, except for plants, most algae can also carry out photosynthesis. Photosynthesis needs nutrients, and there is no shortage of nutrients in fish tanks. Therefore, the birth of algae net is to eliminate excess nutrients in water.

Because algae screens are not widely used, many people don't understand them. At present, there are large and small algae screens on the market, which can be adapted according to the size of your fish tank.

Effect: If your fish tank was changed four times a month, it can be reduced to once with the help of algae filter.