Seeding of Corydoras fish

Corydoras is one type of freshwater fish are much in demand and ornamental fish lovers have export opportunities. Besides being used as a freshwater fish, can also be utilized as raw material for the manufacture of cosmetics in developed countries.

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Although these fish originated from South America, but has long been successfully cultivated in Indonesia. This fish is known for easy cultivation.

Morphological characteristics

Short and stout body shape, more arched back than the abdomen, both sides fish are equipped with such as bone plates arranged in two rows, having two pairs of whiskers located in the upper jaw and lower jaw and body size can reach 12 cm.

Corydoras fish can be cultivated in ponds that contain low oxygen in the water. Suitable environmental conditions for these fish species are: pH 6-8, temperature of 21.5-28 o C.

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Infrastructure and Facilities for CORYDORAS fish

In the fish Corydoras necessary maintenance tools and equipment in the form of materials, namely:

a. Parent fish Corydoras female and male

b. Container maintenance include:

~ Bak maintenance of male and female parent mass, as well as a place of spawning, or the aquarium measuring 60x40x40 cm.

~ Bak larval rearing and seed mass

c. feed CORYDORAS fish

~ Feed the parent form or Chironomous tubifex worms and mosquito larvae.

~ Feeding larvae of artemia nauplii

~ Food for the enlargement of the fish Corydoras until ready for the market is tubifex worms

Maintenance of female CORYDORAS fish

Fish can be bred Corydoras start at least at the age of eight months. Food that is best given in the maintenance period the parent is feed a lot of chitin-containing substances such as mosquito larvae are good for egg development. Also because of Corydoras are 'bottom feeders' then the fish is more responsive to the kinds of foods such as tubifex worms or Chironomus.

The easiest way to distinguish the sexes is to look at body shape. Male fish has a body shape like a torpedo, a part of the back of the gills to tail tapering. The body is more slender and smaller than females, and male fish dorsal fins look more pointy. Body of female fish are larger in size compared to male fish, and the stomach contains an egg that looks rounded.

Spawning CORYDORAS fish

Spawning conducted en masse in cement tanks, fiber tub or aquarium with a ratio of the parent female: male l: 2 or 1:1. Replacement of water every day, to maintain water quality spawning media.

Corydoras have a type of laying by attaching egg to a substrate, namely: plate glass, pieces of plastic gutter (PVC), ceramic tiles or stone slabs.

Corydoras Fish partially take out the eggs, so that every day can be found substrate plastered egg. Each parent is able to produce 200-350 eggs. Furthermore, the substrate is mounted on the container was taken for hatching eggs hatched.

Hatching eggs CORYDORAS fish

Eggs are attached to the substrate subsequently incubated in the aquarium. The eggs will hatch in six days. During the hatching eggs, maintenance media was given anti-fungal drugs such as methylene blue 0.1 ppm. The degree of hatching eggs ranged 60-70%. Corydoras fish larvae maintained in the aquarium until the age of seven days with a nauplius feeding artemia.

Maintenance phase CORYDORAS fish

Maintenance performed on the container in the form of fiber glass or cement tanks up to a size S (Small = small) with density 20-30 tails / liter. During one month reached a size M (Medium = medium) by density 10-15/liter and ready to be marketed.

Subsequent maintenance is more directed to the procurement of prospective parent, because usually in sizes L (Large) market demand tends to decline. Density in the maintenance of size M to L size is 5 fish / liter.

Feed given during maintenance of the fish until ready to be marketed in the form of tubifex worms.

Fish Health Management CORYDORAS fish

Several types of parasites known to infect fish Corydoras are: Trichodina sp, Epistylis, Glossatella sp and Chillodonella sp. While the bacteria that attack is usually a secondary infection that occurs due to injuries due to handling, or attack the parasite that causes injury. Types of bacteria found were Aeromonas hydrophilla.

Treatment for parasitic disease is the use of formalin 25 ppm, 500 ppm of salt. As for bacterial diseases using Oxytetracycline 10 ppm by immersion.
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