Luohan fish

Luohan fish is a cichlid cichlid genus of freshwater fishes, also known as colorful cichlid, flower Luohan and so on because of the head of the bulge like Luohan and so on, in fact, the Luohan fish is not a natural species, but is the formation of the family of Liliidae a number of species of composite hybrids, with a high degree of ornamental value.

Species:

Lohan fish is one of the most common ornamental fish alias colorful sea bream, flower Luo Han, etc., because the head bulge is like Luo Han and so named, in the biological classification belongs to the animal kingdom, chordata phylum, scleractinia, perch, cichlid, cichlid cichlid genus of freshwater fishes, in fact, the Luo Han fish is not a natural species, but is the Liyu family of multiple species through continuous compound hybridization, has a very high ornamental value. In fact, it is not a natural species, but a brand-new ornamental fish species cultivated in 1996 by compounding and hybridizing several species of the family Cichlidae.

Morphological features:

Luohan fish has a stout body shape, lateral compression, body length and body height are very similar, the head is bulging, the kiss is short, the slit in the mouth is large, the lip teeth are fine and sharp, the eyes are large, the iris is mostly red, a few white or gold, the surface of scales is often a golden flake or dotted reflective texture, the majority of varieties of the frontal bead, the lateral line of the two sides of the irregularly long Ink spots, body color varies depending on the strain.

Life habits:

1, water quality: luohan fish on the water quality requirements are relatively high, the optimal pH value of 6.0 ~ 7.8, dissolved oxygen 5 ~ 7 mg / liter.

2, water temperature: Luo Han fish is a tropical fish, the optimal growth of water temperature 28 ~ 30 ℃ feeding critical water temperature of 18 ~ 35 ℃

3, food: Luo Han fish is an omnivorous fish, mainly to aquatic insects, crustaceans, higher plant debris, etc. for food.

4, reproduction: Luo Han fish sexual maturity ranging from 8 months to 2 years, laying viscous eggs, spawning parent fish have the habit of protecting the young.

Methods of feeding:

1, aquarium: Lohan fish belong to the medium-sized ornamental fish, has a strong sense of territory, the common adult fish individual 20 ~ 40 cm, the largest individual up to 50 cm or more, the fish is recommended to raise the Lohan fish with large aquariums, but the juvenile period of small and medium-sized aquariums can be used for temporary breeding.

2, water quality: luohan fish is a tropical freshwater fish, the optimal survival water temperature of 28 ~ 30 ℃, the optimal pH value of 6.0 ~ 7.8, dissolved oxygen 5 ~ 7 mg / liter, good water quality is more conducive to the survival of the luohan fish, if you use tap water is best to be exposed to sunlight or leave it for 2 ~ 3 days before use.

3, feeding: luohan fish is omnivorous fish, mainly to aquatic insects, crustaceans, higher plant debris, etc. for food, juvenile period can be fed red worms, shrimp, etc., sub-completion of the period can be fed shrimp, with feed, etc., the adult period is mainly with the main pellet feed.

4, water change: luohan fish should change water regularly to ensure water quality, otherwise it is easy to induce disease due to poor water quality, summer can be 3~4 days to change the water, spring and fall can be a weekly water change, winter every half a month to change the water, each time one-third of the water can be changed.

Division of strains:

1, Golden Flower strain: Golden Flower strain is characterized by a flat beak, flat eyes or slightly concave, head more forward growth, single color, after the three fins firm, the representative varieties of rainbow Golden Flower, Red Horse Golden Flower, Phantom Golden Flower, red Golden Flower, Imperial Golden Flower, Snowy Mountain Golden Flower and so on.

2, pearl strain: pearl strain is the most common luohan fish, characterized by the forehead beads upward, convex eyes, mouth shape with lower pocket teeth, dorsal and anal fins long drawn caudal fin is rounded or spear-shaped, the representative varieties of Hongyun, blue diamond, yellow-faced pearl, pulling the line of pearl, and so on.

3, the bayou strain: bayou strain was once the star of the aquarium industry, characterized by forehead beads forward, monkey face, flat eyes, nearly flat mouth, dorsal and anal fins do not pull the silk, the body is square, the representative varieties of primitive bayou, the classic golden bayou, the Golden Dawn golden bayou, the new bayou, and so on.

4, Desa strain: Desa strain is not common in the market and the price is relatively high, characterized by lower forehead beads, flat eyes, flat mouth, dorsal and anal fins do not pull or have a short pull, tail fins in the shape of a fan, the representative varieties of the Desa Golden Flower, the Thai Red Texas and so on.

5, flower angle strain: flower angle strain with ink spots, pearl points and scales with a metallic luster and famous, there is a black spot in the center of the body of the fish connected to a thick line, the caudal fin is flat, dorsal fins, ventral fins outward, the representative varieties of vajra luohan, flower God of Fortune, saffron longevity and so on.