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Koi farming tips on water quality, a must for newbies!

文章出处：奥利仕（广州）康体设备有限公司人气：(点击 535 次) 服务热线：(020)82686289

Raise fish first raise water, water clear fish will be happy! Keeping the water quality good is the most crucial step in raising good koi.

Koi ponds are not as good as they could be without chlorine, ammonia, nitrogen and nitrites in the water! In addition to the above toxic substances, the water quality indicators for koi are: color, temperature, dissolved oxygen, hardness, pH and many other indicators. And all of them are very important and closely related to the growth of koi, not to be taken lightly!

I. pH

　　Acidity, or pH, refers to the concentration of hydrogen ions (H+) in water, and is defined as the negative logarithm of the concentration of hydrogen ions in water (i.e., pH = -log [H+]). pH ranges from 0 to 14. When pH = 7, the water is neutral; when pH 7, the water is alkaline.

Koi prefer weakly alkaline water. The higher the pH of the pond water, the higher the percentage of toxic ammonia (NH ) contained in the water.

For example: in acidic water, toxic ammonia (NH ) basically does not exist; PH = 7 when the content of toxic ammonia accounted for only 1% of the total ammonia content; PH = 9 when the content of toxic ammonia accounted for 25% of the total ammonia content, so the toxicity of ammonia will be increased due to the rise in PH.

Koi like weak alkalinity, and as it happens, the higher the PH, the more active the nitrifying bacteria are. In addition to this, a PH that is too acidic or too alkaline can lead to undesirable symptoms in koi.

II. Hardness

　　 Hardness is also known as KH value. It generally refers to the amount of minerals in the water.

Water hardness can be categorized into two types of water, soft water and hard water, depending on the KH value. Water with KH<7 is usually called soft water. For example, the drinking water in our daily life is typical soft water.

Similarly, a body of water with a KH>7 is called hard water. Generally untreated groundwater is hard water, like well water, spring water, mountain water, etc. are hard water. Koi do not have very clear requirements for water softness or hardness, and it is important not to switch them back and forth between soft and hard water.

III. Temperature

　　Temperature is also a very important point, many fishers think that since koi can survive in water temperatures of 2-30 degrees Celsius, is the water temperature as long as the water is in this range is not a problem, in fact, this is very wrong! For example, people can also live in temperatures between -40°C and 40°C, but a big change in temperature will make them sick. The same is true for koi.

Therefore, the important thing in keeping koi is the stability of the temperature, and the most avoided drastic changes in temperature in a short period of time. In addition, the most suitable and comfortable water temperature for koi is 23-28 degrees Celsius, at this temperature stage koi fish will be in excellent condition in all aspects.

IV. Chromaticity

This is very simple and literally means the color and transparency of the water. A noticeable change in either the color or clarity of the water means it's time for a water change, and if left unchecked and for a long period of time it can lead to koi illness.

If there is a strong filtration system or there is still a change in water quality, it means that you should clean the filter media, koi belongs to the type that can eat and pull, make sure to change the water or clean the filter media regularly, or choose a fully automated fish pond filtration system, so as to ensure that the water quality is consistently good!

V. Dissolved oxygen

Koi feces and feed residues are the most serious source of pollution in koi pond water, so the pond must have a perfect filtration system. It can be either a filtration pond or an integrated fish pond filter. For the difference between the two and how to choose, interested parties can look up previous articles.

The amount of dissolved oxygen in the water is an important indicator of good or bad water quality, which directly affects the ecological health of koi.

Fish breathe oxygen in the water through their gills to maintain their respiration and metabolism. Once the dissolved oxygen is insufficient, it will easily affect the normal physiological activities of the fish, and in serious cases, it will even threaten the life of the fish. At the same time, harmful substances will also increase dramatically in low dissolved oxygen water, triggering fish diseases.

Generally, midnight or dawn is the time when the dissolved oxygen in the water is at its lowest, and when the dissolved oxygen is below 5mg/L, the fish will experience shortness of breath and floating head.

Specifically, on filter media that tends to clog, contaminants such as fish feces attach in a short period of time, and then microorganisms multiply rapidly and eat the contaminants.Oxygen consumption increases when microorganisms multiply, and if there is no sufficient oxygen supply in the filter media, microorganisms will die suddenly due to lack of oxygen.

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Therefore, to judge the performance of the filtration system, its filter area is certainly important, but its filtration function is the normal operation of the reference to the oxygen can be fully supplied to the various departments of the filter media, that is, the filter media, the filter internal structure of the science and rationality to improve the microbial activity of the function.

Fish excreta and residual bait more than the microbial filter bed can decompose nitrification capacity, so that the bacterial growth of putrefaction, resulting in deterioration of water quality, the production of carbide, so that the pool water is turbid, affecting the view, endangering the health of fish. If a large number, too diligent water change, caused by water temperature, PH value and dissolved oxygen fluctuations, affecting the nitrifying bacteria reproduction and role.

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