Showing posts with label Rasboras. Show all posts
Showing posts with label Rasboras. Show all posts


3 Types Of AQUARIUM FISH - Nature And Habitat Explained

English: Pterophyllum scalare - Angel Fish1. Angel Fish
This is a fish bigger than most aquarium varieties. The black Angel which comes from the Amazon basin area belongs to this category. Angelfish are also found in areas such as the Rio Tapajos and Orinoco. These fish feed on smaller live bait in the aquarium. They have a deep well-defined body structure. Their fins differ in color. 

They have small, pouted lips and curved eyes. Some of them have black spots which are quite desirable with collectors of ornamental fish. Angelfish normally live in water temperatures of around 72 Fahrenheit, but the water needs to be warmer at 77 to 86 degrees, for them to start breeding. Keep them in subdued lighting conditions. These fish love the natural wild surroundings, so provide lots of plants in the aquarium to keep them satisfied. You need to keep them away from bright lights, which tend to make them a bit nervous. Angelfish have certain bones in the throat region, so do not get alarmed if you hear a noise when they breed.

English: Harlequin rasbora, Trigonostigma hete...2. Harlequin Fish
The Rasbora Heteromorpha is a fish from this category. It is similar to the Cyprinidae family, and it is seen in the eastern Sumatra region, Thailand and Malaysia. It is a very attractive species with a thick body shape. It is colored a silver grey which shimmers when it moves. They normally have a patch of blue or black on the body as well. These fish grow up o about an inch and a half in length and they prefer to live in warm waters since they are from the tropical region. Keep the tank around 75-77 degrees if you house these fish. However, when they are breeding the water should be at a warmer level of say 82 degrees Fahrenheit. Keep the lighting subdued and provide ample room for them to swim around, they are quite active.

Picture taken in the zoo of Wrocław (Poland): ...
All Photos Wikipedia (CC)
3. Scat
These fish belong to the Scatophagus Argus category and is closely related to the Scatophagidae. They are found in the eastern region of India. It is colored a brownish gold tone, with a sprinkle of brown spots all over the body. They are larger than other varieties discussed in this article and can grow to over eleven inches in length. Scats are hexagonal in shape. This fish prefers a well-lit area to live in, and you need to add salt to their water to keep them healthy. 3 or 4 teaspoons of salt in 2 to 3 gallons of water should do just fine. You could add sand into their tank rather than gravel, as well as some good hardy plants to make them feel at home. They enjoy eating the live bait, as well as a little from the plants. Use a good filter in their tank and you need to get ready to often change their water.


Tips on RASBORA - Care and Spawning

English: Harlequin rasbora, Trigonostigma hete...
Harlequin rasbora, Trigonostigma heteromorpha (Photo credit: Wikipedia)
Rasboras or Rasbora heteromorpha are members of the family Cyprinidae. Rasboras are native to Malaysia, Singapore, Sumatra, and southern Thailand. There are several species in the genus Rasbora. We will focus our attention on R. Heteromorpha. The Greek translation of Heteromorpha literally means differently shaped.

Rasboras are commonly referred to as harlequin fish or harlequin rasboras. This reference alludes to the black triangular patch on the back half of their bodies which is reminiscent to the patterns found on the costume of a harlequin.

Rasboras have a docile temperament. They make a good choice for a community tank provided their tank-mates are equally peace loving and not large enough to view them as a source of nutrition. Rasboras are shoaling fish. Shoaling fish are highly social creatures that function best as a community. They don't adapt well to a solitary existence. It is recommended that you have at least four of these upper to mid tank swimmers in an aquarium.

Rasbora is a small fish. They only grow to an adult size of 1.5-1.75 inches. They thrive it soft, slightly acid water with a pH 0f 6.8 and a water temperature ranging between 74-78 °F. Under ideal conditions you can expect them to live up to 10 years of age.

Rasboras are omnivores. They will survive just fine on a diet of common tropical fish flakes.
Distinguishing sexes in rasbora is relatively easy. The male bodies are thinner. Females are more full bodied especially when carrying eggs. The distinct triangular marking on the rear of their bodies differs between sexes. The males have more defined angular markings that extend further back on the lower abdomen than the females.

Breeding Rasbora

In their natural habitat, they inhabit streams that are littered with jungle decay. As a result peat grows abundantly in the streams releasing humic acid into the water. These same conditions can be simulated by filtering the breeding tank's water through peat or adding a thin layer of peat to the substrate. This will naturally increase the acid levels in the water. Make certain the peat contains no chemical additives or fertilizers.

A high protein diet of brine shrimp, tubifex or bloodworms will help induce the spawning cycle. Provide plenty of plant life to replicate their natural spawning grounds.

The male will begin chasing the male as a manner of courtship. Once the courtship phase is over the pair will spawn amid the foliage. Their eggs will be deposited on the underside of a broad leaf. Remove the adult from the breeding tank.

Once spawning has occurred you will want to darken the tank. The fry are susceptible to fungal growth. Surround the with paper or tin foil until the fry hatch and are free swimming. Eggs will hatch in about a day. After they hatch check the tank once a day. When you see the fry are free swimming it is time to start feeding them. This should take no longer than 3 days or so.

Free swimming fry can be fed liquid fry food formulated for egg layers or newly hatched brine shrimp. An economical and readily available alternative is powdered eggs. Make sure not to put too much in the water to avoid clouding it up.

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    Article Source: EzineArticles


2 Great Freshwater Pets - Harlequin RASBORA And Clown LOACH Care Tips

English: Harlequin rasbora, Trigonostigma hete...
Harlequin rasbora, Trigonostigma heteromorpha
(Photo credit: 
The Cyprinidae family of fish have many fish that are great for aquariums. Some of them are a little easier to maintain than others, but no less fun. This family consists of carps and minnows, which are tiny fish.

The Harlequin Raspbora fish are known for the colorful bodies and high spirit in the tank. One of their main characteristics is the dark triangular shape on the tail end of the fish. It starts in the middle of the body and continues to the end of the fin. These fish, which are part of the Rasbora Heteromorpha family, are popular among freshwater aquariums. They come from Thailand, Eastern Sumatra and the Malay Peninsula and can reach about 1 3/4 length.

Aquarium owners love harlequin fish because they do well in communal tanks. They aren't going to fight with the other fish are get territorial. They enjoy a little bit of everything when it comes to hanging out in the tank. While they they enjoy the top of the tank, they also like little hiding spots to hide in vegetation, but give them plenty of open water to swim in.

Harlequin are friendly fish, but do enjoy their own kind. Try to keep them in a small school, at three to six of them should be in your tank. Not only is this for the fish's sakes, but a group of them are a great sight in your tank as the lights glisten off the fish's shiny, colorful body.

Water conditions: These freshwater fish are easy to care for as long as you do the right thing. The water for the harlequin fish should be kept around 76 degrees Farhenheit. They enjoy soft water and peaty water. Use a peat bag in your filter for them. The water should also be slightly acidic. Keep the pH in the 6.0 to 6.5 range.

Aquarium conditions: Consider live plants for the harlequin's aquarium. Find plants that are native to the harlequins natural habitat. These fish also prefer dim lighting. It's best to find plants and other fish that will enjoy the same environment.

Feeding: The harlequin is perfect when it comes to food. They aren't demanding and will eat many things. Try flakes, dried, frozen and live foods. By giving them a good diet range, you can make sure they won't have any digestive problems.

A clown loach
A clown loach (Photo credit: Wikipedia)
Loaches are interesting freshwater fish. These are the scavengers in your freshwater aquarium. They tend to stay around the bottom of the tank feeding on anything they could find. Many live in low quality water such as murky rivers and have adapted by coming up to the surface and breathing in atmospheric oxygen. One of the more popular loaches for aquariums is the clown loach. They make interesting fish to keep because they also eat the algae in the tank, making cleaning a little easier.
Water conditions: The temperature should be pretty warm. They like it to be around 84 degrees Fahrenheit with a pH around 6.5. Loaches are sensitive to water quality. Keep the water clean with a good filter. Also, the clown loaches prefers a higher moving current just like their freshwater environment.

Aquarium conditions: Line the bottom of the tank with sand or gravel that the clown can dig into. You should have live plants in the tank, but this will change based on the clown loach. A young loach can keep with most plant species, but adult loaches prefer plants such as the java fern and anubias. The clown loaches live to hid, so the more places they can squeeze into, the happier they will be. Don't worry if the loach digs himself into a hole. He's just relaxing.

There are so many different freshwater fish to choose for your aquarium, it's going to be hard to pick just one. Find the ones you are going to enjoy most and take great care of them.

    By Abhishek Agarwal
    Abhishek is an avid Fish Lover and he has got some great Aquarium Care Secrets up his sleeves! D
    Article Source: EzineArticles


Fact Sheet: HARLEQUIN RASBORA - Trigonostigma heteromorpha

(Original title: Harlequin Rasbora Fact Sheet)

English: Harlequin rasbora, Trigonostigma hete...
Harlequin rasbora, Trigonostigma heteromorpha (Photo credit: Wikipedia)

A Peaceful and Delightful Fish

I have grown up with the idea that this delightful fish's scientific name was Rasbora heteromorpha. This used to be correct, with the heteromorpha referring to the fact that this fish is not a typical Rasbora. Now the name has been changed to Trigonostigma heteromorpha because of the several differences between the Harlequin Rasbora and the other Rasboras.

It is also called the "Rasbora", the Harlequin and the Red Rasbora.

It is native to Singapore, Malaysia, Sumatra and parts of Thailand. It is found in small streams, often ones coming from peat bogs where the water is stained brown with tannins. The water tends to be soft, acidic and low in total salts. This is one of the little fish that can be found in the small ditches in Singapore.

Although I have seen reports of Harlequin Rasboras reaching nearly 2 inches (5cm) nearly all are less than this. They will live for about 6 years,

Water Conditions
The Harlequin Rasbora is a tropical fish and temperatures of between 21 degrees C (70 degrees F) and 28 degrees C (85 degrees F) are suitable. I recommend a temperature setting of 24 degrees C (75 degrees F) for a mixed tank including this fish Although the water in its native habitat tends to be soft, acidic and low in salts, it is able to adapt to living in a wide range of water conditions, and can live happily in neutral water somewhat harder than it is used to.

Live plants are a very good idea with the Harlequin Rasbora.

The Harlequin Rasbora is very much a schooling fish and a reasonable sized group should be kept. A school of a dozen Harlequin Rasboras is a beautiful and striking sight. Although it is an Asian fish of a different group, its characteristics are similar to many of the small South American tetras.

I would avoid large or very aggressive fish, but the Harlequin Rasbora is an ideal fish for a community tank of small fish. Suitable companion species are Lemon Tetras, Neon Tetras, Cardinal Tetras, Emperor Tetras, Head and Tail Light Tetras, Glowlight Tetras, Corydoras Catfish, White Cloud Mountain Minnows and Zebra Danios.

One of the reasons it was removed from the Rasbora genus was its breeding behaviour. The other Rasboras are egg scatterers while the Harlequin Rasbora attaches its eggs to the underside of leaves, turning upside down to do it.

In contrast to the ease of keeping the Harlequin Rasbora, the conditions for breeding need to mimic the natural habitat of this fish fairly well. A temperature of 28 degrees C (82 degrees F) is suitable. Soft, acidic water is essential; a ph of 6 with hardness less than 3 degrees is alright. A high level of tannins in the water is also recommended.


Fact Sheet: SCISSORTAIL RASBORA - Rasbora trilineata

(Original: Scissortail Rasbora Fact Sheet)

Three-lined rasbora Rasbora trilineata
Three-lined rasbora Rasbora trilineata (Photo credit: Wikipedia)

The Scissortail Rasbora, Rasbora trilineata, is also called the Scissortail Shark, and simply the Scissortail. Alternative scientific names are Rasbora calliura and Rasbora stigmatura. It is not shark like in its behavior and only vaguely shark like in its appearance. It grows to about 4 inches (10cm). It is fairly peaceful and is suitable for a mixed collection of small fish.

The Scissortail Rasbora comes from South Eastern Asia, including Malaysia and Indonesia.
This fish has attractive black and white markings on its tail, and the movement of these as the fish swims reminds some people of the action of Scissor blades.

Water Conditions
The Scissortail Rasbora comes from soft acidic waters and these are the ideal conditions for it in an aquarium. They will adapt to neutral pH (7) and some hardness in the water. 24 degrees C (75 degrees F) is a suitable temperature. In the wild, the Scissortail Rasbora often inhabits flowing water, as in a river or stream. Some water movement from a filter in the aquarium is beneficial.

The Scissortail Rasbora is an omnivore. It will eat any normal fish food and loves live food like mosquito larvae and daphnia. Frozen blood worms and frozen brine shrimp are also gobbled up eagerly.

The Scissortail Rasbora likes conditions similar to the preferred conditions of many of the South American Tetras.

Some suitable companions are Pristella Tetras, Paraguay Tetras, Rummy Nose Tetras, Harlequin Rasboras, Buenos Aries Tetras, Black Widow Tetras, Emperor Tetras, Head and Tail Light Tetras, Glowlight Tetras, Corydoras Catfish, White Cloud Mountain Minnows and Zebra Danios.

The Scissortail Rasbora can also be kept with Swordtails, Glass Bloodfin Tetras, Guppies, Endlers Guppies and Mollies, but the water conditions for a mixture like this would be a compromise between the ideal conditions for these different fish and would not be ideal for any of them.

The Scissortail Rasbora is not a very easy fish to breed. The females tend to be a little larger than the males and will be plumper when ready to breed. Conditioning the fish with black worms or other rich food like frozen blood worms is a good idea.

The breeding tank needs to have soft, acid water. A lowered water level may also help stimulate breeding. Cleanliness is very important for this species and the addition of an anti fungus medication may help prevent the eggs from getting infected.

The Scissortail Rasbora will eat its own eggs and babies and the parents should be removed after spawning.

The eggs will hatch in 24 hours and will take small live food like the finest screened Daphnia as soon as the egg yolk is fully absorbed.