FISH CULTURE

Koi Fish Koi are ornamental fish are widely kept in freshwater ponds. for ornamental fish hobbyists, koi fish serve as the mainstay of ornamental fish. why koi fish serve as the mainstay because these fish have a high value. conditions suitable for pond maintenance koi fish that pond wall with clear water.

Fish yellow-headed jawfish Opistognathus aurifrons These fish species like to live in burrows, on reasonable grounds in the form of fine sand or gravel. This fish spends most of his time was in the sand with the half body outside and half his body again in burrows or hovering over the canal. when the substrates area wide enough so some of this tail can be maintained in the same aquarium. details of the type: size of 12.5 cm (5 inches) in natural fish size is typically smaller than the fish inside the aquarium. the origin of this fish: The tropical Atlantic west Breeding: jawfish relatively easy to lay eggs in the aquarium. The males will keep the eggs in his mouth.

Water quality that meets the requirements for aquaculture hatchery catfish ( Clarias batrachus Linn. ) Ground water for spawning and rearing seed - Temperature: 25-32 degrees Celsius - Suspended solids: maximum 400 mg / l - Turbidity: a maximum of 50 NTU - Dissolved oxygen: up to 5 mg / l - Carbon Dioxide: Maximum 12 mg / l - PH: 6.5 to 8.5 - Ammonia Total: maximum of 1 mg / l total ammonia - Nitrite: maximum 0.1 mg / l - Alkalinity: minimum 0.1 mg / l - Total hardness: minimum 20 mg / l CaCO3 Surface water for the maintenance of the prospective parent and parent - Temperature: 26-32 degrees Celsius - Suspended solids: maximum 600 mg / l - Turbidity: 250 NTU maximum - Dissolved oxygen: up to 5 mg / l - Carbon Dioxide: Maximum 12 mg / l - PH: 6.5 to 8.5 - Ammonia Total: maximum of 1 mg / l total ammonia - Nitrite: maximum 0.2 mg / l - Alkalinity: Minimum of 50 mg / l - Total hardness: minimum 20 mg / l CaCO3

decorative fish Blue Damsel ( Chrysiptera cyanea ) This fish is one of the few blue damsel and a blue-and-yellow are available. Blue damsel fish have aggressive and tough character, especially in defending its territory. Blue damsel fish usually live alone or in small groups in the aquarium. Size of about 6 cm (2 ¼ inches). Blue damsel fish comes from the Pacific Ocean to the west and the eastern part of the Indian ocean. These fish spawn on the substrate, the temperature of the water for maintenance is 26 degrees Celsius

Sailfin Molly (Poecilia latipinna, P. velifera) This type looks like from the outside, but P. velifera, which is also more precise, known as the Yucatan Molly, much bigger. In a population of P. latipinna in nature, not all males have the characteristics such as screen width fin (Sailfin). Both types of interbreeding and as a result a lot of variation in the aquarium that appears. DETAILS OF. Size: P. latipinna: male about 10 cm (4 inches); female 12 cm (4 3 / 4inci) P. velifera: males up to 15 cm (6 inches); female 18 cm (7 inches). The origin: P. latipinna: Carolina, Virginia, Texas, Florida, and the Atlantic coast of Mexico. P. elifera: Yucatan Peninsula in Mexico Ease maintained Easy to moderate direction. Children breeding: fish in large quantities (up to 140 head) every 6-10 weeks is not rare. AQUARIUM MAINTENANCE. Water: Water-base, hardness medium containing 5-10 percent salt sea water is preferred. Temperature: 23-28 ° C 73-82 ° F, with temperatures approaching the ...

Management of fish feed. In aquaculture, feed is an important component that requires a lot of costs for procurement. Feed directly influence the growth rate of farmed fish 1. Fish Food Nutrition. Quality feed nutritionally complete and balanced. Fish feed must contain protein, fat, carbohydrates, vitamins, and minerals in sufficient quantities and qualify the needs of fish. a. Protein. Proteins are complex organic compounds are composed of many amino acid protein can be derived from plants and animals. Proteins of vegetable plants are usually more difficult to digest fish because wrapped cellulose. The content of amino acids in vegetable protein is less complete so need to be supplemented with animal protein. Protein is the most important element in the feed. The main function of protein for fish metabolism is acting as a network builder body, replacing damaged tissue, plays a role in reproduction, the main constituent component of enzymes and hormones, and plays a role in metabolic p...

fish pond embankment. Calm water fish pond has many important components, such as a fish pond dike. Fish pond dike made with a trapezoidal shape is wider bottom. This meant that not prone to landslides. The slope of the embankment should be no more than 45, to make the pond needs to be done hoeing the middle, move the soil to the edge, forming dikes. To prevent landslides embankment cliff, cliffs can be planted with grass (Cynodon dactilon). rearing pond depth is 100-150 cm. The water level of the bottom of the pool can be set from a height of 50-120 cm, depending on seed size and stocking density. When the fish have started great with a dense population, the water level can be expanded up to 120 cm.