Fish pond water quality requirements, how to improve water quality in aquaculture

Pond water aquaculture has been plagued by poor households, then what causes poor water quality, and how we can improve water quality, enhance aquaculture effective? Let's do a detailed analysis: keep fresh water ponds, without making excessive pollution, and to ensure adequate nutrition pond water and dissolved oxygen, so that fish can have a more comfortable living environment for accelerating fish an important condition for growth. As sick fish, hypoxia caused by abnormal mostly due to poor water quality pan-pools, especially in summer high temperature is particularly evident. Therefore, often observe pond water quality, identify problems and timely treatment is a long and detailed and complicated work, but also improve one fish production measures. First, the causes and effects of water quality observed effect color color There are many reasons, if plankton, suspended solids, dissolved substances, reflecting the sky and soil caused by other factors. However, the number and types of plankton is the main part of the decision widowed excellent color. According to the water color can be divided into several types of water quality. 1, thin water: water color is light green or crystal clear, more transparency in 1250px, widowed less plankton in the water, but there are zooplankton species, a small number, sometimes making it difficult to digest phytoplankton fish, this quality if quick fertilization, poor water eventually belong. 2, fertilizer: general water color is brown, light brown or green oil, transparency between 25-1000px, described the water planktonic animal and plant species and more susceptible fish intake, and dissolved oxygen and rich, to be normal fertilization. 3, Old Water: general water quality dark green, blue-green, gray or yellow mix, water mixed degree of transparency between 20-625px, water and half-digested fish contains more digestible substances. This water quality if not promptly take water, changing the water measures will make the water hypoxic deterioration; 4, bad water: When quality becomes red-brown, brown or black, with the stench, which is a reflection of serious pollution. It is on the basis of plankton in the fertilizer from further breeding, blue-green or green clouds and massive, filamentous phenomenon, namely "; spray."; If you do not take measures to deal with, it will result in the entire pool of hypoxia floating head, and even lead to a large number of deaths. While changes in color, but also with the type of feeding fertilizer related. Second, the water quality criteria and the merits of the merits of the standard measure of water should have "; fat, live, tender, cool"; features. "; Fat"; represents more organic compounds in water, plankton large and easy to make fish intake and absorption. "; Live"; refers to frequent changes in color, phytoplankton populations in breeding a strong period; "; tender"; refers to the color of fresh-lasting, easy to digest more phytoplankton, most of algal cells are not aging. "; Cool"; refers to the color of fresh, turbidity large, transparency is moderate, high dissolved oxygen. To make fish a good living environment, depending on the type of water quality, should take the following approach: 1, the physical law: First, make the yellow sand and other suspended solids in water quality reduced material to enhance the transparency of the water, to achieve the purpose of improving water quality. Second, the use of oxygen and water quality improvement and dissemination of machinery to promote the decomposition of organic matter and harmful gases, accelerate reproduction and growth nutrients. Third, the bad water, changing the water and the old water in a timely manner and to inject new water to improve water quality conditions. Fourth, the construction of fish ponds standardized, timely and clear the trip to disinfect ponds, yielding clear ponds swim once a year, the average fishponds every 2--3 years clean once. Fifth, the use of people walking back and forth stir pond pond method, decomposition of organic matter to promote bottom quality. While feeding should grasp "; fourth set, four to see"; principle, timely clean food market every day, remove bait. 2, the chemical method: put some chemicals in the water to quickly adjust water quality. Lump quicklime used to improve water quality PH value, serving to increase the dissolved oxygen oxidizer and disinfection and sterilization. Topdressing of chemical fertilizers to increase fertility and water, to ensure water quality fish normal growth. 3, biological treatment (currently the most effective method) Specific Usage 1. Pond fish (1) to improve water quality: 3 days before stocking, with 100 times the fishing Bao special aquatic bacteria splashed water dilution; later, as water quality, 10 to 15 days the spill once per acre (about 1 meter depth) with a fishing treasure special aquatic bacterium 1 kg. (2) spices Feeding: 200 times aquaculture and fisheries Bao special bacteria dilution jet wet feed, are now fed spray, so as not to disperse. Where the use of dung to feed the fish, must be 1 (aquaculture and fisheries Bao special bacteria): After 50 (faeces) fermentation into the water. (3) fish diseases: fish floating head pan pond, or there are signs of the disease, can be used per acre private fishing treasure aquatic bacteria 2 kg evenly sprinkle the surface of the water, the first two days and then poured 1 times. 2. Special breeding (1) Environment treatment: a week before water with 100 times the fishing Bao special aquatic bacterium instead of lime diluted evenly sprayed clean environment. 3 days before stocking, diluted with aquaculture and fisheries treasure special bacteria liquid splashed water at a concentration of 20 millionths of; after the spray once every 10 to 15 days, poor water quality areas should increase the concentration spill shorten the interval. (2) to regulate water quality: high density changing the water in the pool, not directly spill, but should be poured next to the aerator or intake, the proliferation of beneficial microorganisms and the action of water through the machine, in order to facilitate the shortest time to break down harmful substances, stable water quality as soon as possible. Tong soil seawater eel should change the water after each spill aquaculture and fisheries treasure special bacteria dilution (concentration ibid.). Shrimp, snapper, etc., in January spilled dilution 2 to 3 times the amount of an appropriate increase in the incidence of the season. (3) Fish feed processing: 100 times aquaculture and fisheries Bao special bacteria dilution and stir together powdered feed, a slug feeding. Animal feed fed fresh turtle pools, can be expected to break first, and then feed 100 times aquaculture and fisheries Bao special bacteria dilution Stir together feeding. (4) Fresh Taiwan Remedy: Check each food before feeding station, with 200 times the fishing Bao special aquatic bacterium dilution sweeping purge the food table. 5. Fresh seafood fresh seafood tank every 1-2 days spray once 500 times aquaculture and fisheries Bao special bacteria dilution extended live fresh seafood and keep its surface clean of gratifying. Third, note 1, aquaculture and fisheries Bao special bacteria Do not mix with chemicals, when mixed cause water stank, changing the water immediately, then technical requirements for special fishing treasure aquatic bacteria feeding and spices diluted spray. 2, aquaculture and fisheries Bao special bacteria feed shall be kept fresh when feeding configure-feed, feed the whole day, if the surplus should be sealed to prevent deterioration; if using hot diet, you need the following cooling to 45 ℃ before incorporation aquaculture and fisheries Bao special fermentation feed.