First, water quality All water in nature contains more or less different kinds of chemicals that directly affect the growth of fish. Because tropical fish are small fish that live in tropical waters, their water requirements are much higher than other fish. Tap water, river water, well water, and lake water can all be used to feed goldfish directly. However, if they are used directly to raise tropical fish, tropical fish will become sick and die. Therefore, we must maintain the tropical fish, we must meet the tropical fish water quality requirements. The so-called water quality, mainly refers to the water hardness and pH. The hardness of water is determined according to the content of calcium, magnesium, iron, and salt in the water. When the content of these calcium salts in water reaches 65 mg per liter, it is called neutral water; when it is lower than 65 mg, it is called Soft water; Rain is soft water; tap water and river water are mostly neutral water. An easy way to judge the hardness of water is to see if the bottom of the kettle is alkaline or not. Water can soften after boiling. The pH of the water, the pH, is determined by the amount of hydrogen ion in the water. The PH range is between 0-14. The method for measuring the pH value is to use a litmus paper and a colorimetric plate, and put the test paper in water for half a second and then take it out. Comparing with the color plate, the pH value can be obtained. When the PH value is less than 7, it is acidic water; when it is equal to 7, it is neutral water; when it is greater than 7, it is alkaline water. Most tropical fish are suitable for living in the pH range of 6-8. Test strips and color shades are available in medical stores around the country. Most people in the city raise tropical fish and use tap water. Tap water is basically neutral water. Its hardness and pH are in line with the requirements for rearing tropical fish. Therefore, there is no need to worry too much in this respect. However, tap water also has its disadvantages. Tap water is sterilized with chlorine gas and bleaching powder, so tap water always contains trace amounts of chlorine gas and alkali, while chlorine gas is a substance harmful to tropical fish. When you raise tropical fish with tap water, you must remove chlorine from it. The main methods are drying and chemical methods. The drying method is to dry in the sun for 2 days, or to dry in the absence of light for 4 to 6 days before use. The chemical method is to use the sodium thiosulfate to remove chlorine, and the proportion thereof is 1 g of sodium thiosulfate per 10 kg of water. After stirring and dissolving, it can be used. Second, change the water During the growth process of tropical fish, it is necessary to continuously excrete feces, and the remaining food in the water is also constantly oxidized and rotted, all of which will produce harmful substances, deteriorate the water quality, affect the normal breathing of tropical fish, and make the fish sick and even die. Therefore, the tropical fish should be frequently changed in time to keep the water fresh and the tropical fish to grow normally. The change of water is partial water change and full water change. Part of the water change, also called watering, is to use a siphon to aspirate fish manure, residual food and other contaminants from the bottom of the fish tank. Part of the exchange of water does not need to remove the fish and aquatic plants, water absorption of about 1/4 of the amount of water in the tank is appropriate, large fish tanks can be less to absorb a certain percentage, in short, depending on the specific circumstances may be. After the filthy water has been sucked out, add new water at the same time, at the same temperature after drying or chemical dechlorination. If the water temperature is low, add boiling water or use a heater to heat the water up to the water temperature in the tank, and then replace the new water into the tank. . The number of watering should be twice a week in autumn and winter, and it should be appropriate in spring and summer three times a week. All water change is the more dirt in the tank, and the water and grass should be re-cleaned. All the water changes should remove all the equipment from the tank; take out the water grass; remove all the fish and put it temporarily. In other containers of the same temperature as the raw water, use a sponge or sandcloth to scrub the cylinder wall and bottom of the cylinder and then remove all the water. If necessary, wash again with a small amount of concentrated saline solution, rinse it, and reload it. After adding new water, wait for 2 to 3 days before putting the fish back into the tank. Even with chemically treated water, it is best not to put the fish in immediately to prevent the new water from stimulating the fish too much and causing accidents. It is advisable to change the water all the time 3 to 4 months, but change the water if the water quality changes. Orthopedic Suction Tubes,Orthopaedic Suction Sets,Orthopedic Super Sucker,Orthopaedic Suction Cannulas Qingdao DMD Medical Technology Co., LTD , http://www.conston-tech.com
Tropical fish rearing water management
Water is the most basic condition for the growth of fish. The quality of water is directly related to the growth and reproduction of tropical fish. Due to the lack of knowledge in many tropical fish cultures, many problems have arisen in the fish farming process, affecting the rearing of tropical fish. Therefore, before fish farming, we must have a more detailed understanding of the water.
Next Article
How much do you know about fruit mystery?
Prev Article
An allusion to the name of Yuexi Cuilan tea