Home Forums Fish Introduction of the Rasbora Heteromorpha


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    Rasbora heteromorpha is a general term for a kind of fish and belongs to the light fish. Rasbora heteromorpha are all in the shape of a spindle, and the body color ranges from orange to gold, indigo, and the temperament is generally mild. They can be reared with other gentle small tropical fish. According to the changes of different species, the water temperature suitable for the growth of Rasbora heteromorpha also changes, generally floating between 23-28 degC.

    1. Harlequin Rasbora

    The Harlequin rasbora was first produced in the rivers of Thailand, Indonesia, Malaysia and other countries in Southeast Asia and other places.

    The body length of the adult Harlequin rasbora can often reach about 3~5cm, and the body is small and exquisite, showing a spindle-shaped fuselage, the body color is golden yellow, but when swimming, it will reflect the bright blue, pectoral fin and The edge of the ventral fin is colorless and transparent, and the caudal fin is cross-shaped. The most prominent feature of the Harlequin rasbora is its chest and abdomen. From this position to the caudal fin, there is a black triangle. This is the most common and obvious feature of the triangle fish.

    The Harlequin rasbora fish has a mild temperament and does not have the ferocious personality of large ornamental fish. You can raise it with other gentle small tropical ornamental fish. It is more suitable for the water temperature of 22-28 degC, it is better to control the PH value between 5.0-7.0, and the hardness (dGH) is about 4-12°N. The Harlequin rasbora prefers to move in the middle and upper parts of the water layer, and can adapt to slight changes in water quality, but the temperature difference between day and night in the environment is best not to exceed 3 degC. When the alkalinity of the water quality rises, some humic acid can be added appropriately to adjust the PH value.

    2. Trigonostigma Espei

    Trigonostigma Espei, a type of Rasbora heteromorpha, also known as Red and Blue Rasbora. Trigonostigma Espei was originally produced in the waters of Thailand, Malaysia, Indonesia and other countries in Southeast Asia and other places.

    The body of an adult Trigonostigma Espei is about 4-5cm long, showing a flat spindle shape. The dorsal fin, ventral fin, anal fin, and caudal fin are all transparent. From the middle of the fish body to the tail fin, there is an approximate The triangle of the sickle reflects blue light when swimming. Along the triangle, the outer edges of gold and orange are inlaid, and most fish bodies, including fish eyes, appear orange-red.

    The suitable water temperature for Trigonostigma Espei is about 22-26 degC, the pH is about PH5.0-7.5, and the water hardness is about 2-10°N. Trigonostigma Espei likes to live in the middle layer of the waters and belongs to oviparous fish. Daily feeding can be fed with some thin slices of feed and relatively small active bait.

    3. Trigonostigma Somphongsi

    The Trigonostigma somphongsi was originally produced in the waters of Thailand, Malaysia and Indonesia in Southeast Asia and other places.

    The adult body length of the Trigonostigma somphongsi is only about 2cm, which is the smallest species of Triangle Lightfish. The appearance of the whole fish is in the shape of a spindle. The dorsal fin, ventral fin, anal fin and caudal fin are all transparent. There is a straight black stripe from the chest and abdomen to the caudal fin. The surrounding fish scales are golden yellow and gradually fade away. The upper part of the fish body is slightly transparent light cyan, and the fish eye is also cyan. The overall color of the Trigonostigma somphongsi is relatively bright and bright. The bright golden yellow color is matched with the small and sensitive fish body, which has a certain degree of appreciation and is also very attractive.

    Trigonostigma Somphongsi imports are very scarce in the country, because they do not have the most prominent feature of the triangle fish, triangles, and are not as thick and colorful as the Trigonostigma Espei, which causes it to be almost mixed with other triangle lights. Imported from the variety, it is not easy for players to find in the ordinary fish market.

    4. Purple Harlequin rasbora

    The adult body of the Purple Harlequin rasbora is about 3-5cm. The body of the fish is a spindle, the tail fin is cross-shaped, and the body surface is mostly gorgeous and psychedelic indigo, only in the fish eye, fish head and dorsal fin. , Ventral fin, anal fin, caudal fin and other parts are rendered in orange. The closer to the chest and abdomen, the deeper the indigo color. Its beautiful appearance can add an elegant and dreamy color to the water tank.

    Purple Harlequin rasbora has a relatively mild personality and likes to forage in mid-water activities. It belongs to oviparous fish. According to the natural environment of its place of origin, the suitable temperature for the growth of purple delta fish is about 22-28 degC, the pH value of the water quality is about 6.0-6.6, and the hardness is about 1-3 degrees. General rainwater can be used for feeding The water used by the purple triangle fish. Like many lampfishes, the purple triangle lampfish prefers soft old water. The water temperature should not change more than 2 degC. The temperature difference between day and night should not be too large.

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