Are Threadfin Rainbowfish aggressive?

What are the characteristics of threadfin fish?

When stationary, its colors are pretty rather than gaudy. Yet the fins of the male threadfin and the flamboyant way it displays these set it apart from all other fishes. Like other rainbows (family Atherinidae), it has two dorsal fins, but again the similarity is limited. The first dorsal is large and rounded.

How many filaments does a threadfin have?

Photo: Gabby Mitsopoulos Blue threadfin showing the obvious diagnostic characteristic of 4 free pectoral filaments. Photo: Gabby Mitsopoulos As well as their prized eating qualities, threadfin are highly regarded as a sport fish. When hooked, they can put up epic fights displaying great strength and speed, often performing leaping acrobatics.

What is a threadfin fish?

Threadfin belong to the fish family Polynemidae, which forms part of the order Perciformes (the most diverse order of fishes, including over 100 families). The ‘suborder’ it falls under is Percoidei, which contains those families with the most diversity in the order of Perciformes.

How to identify an Indian threadfin?

The easiest way to tell an Indian threadfin is the count the threadlike rays which are found just under the pectoral fins. There should be five in the Indian threadfin as compared to four with the “Peh Ngor” or four finger threadfin. These two varieties are the ones that are commonly seen at the market.

Where do threadfin rainbowfish live in the wild?

This fish can make a compelling addition to any tank. Threadfin Rainbowfish are native to slow-moving streams, lagoons, freshwater marshes, billabongs and freshwater swamps, containing clear water and abundant macrophytes in New Guinea and Northern Australia and have also been found in the lakes Kala and Bosset.

What is the difference between Rainbow threadfin and Rainbow boesemani?

Rainbow boesemani male have upper and lower fins have more elongated, and the red is more prominent than the females. Rainbow threadfin have a beautiful color, flat body posture, long filamentous fins on the bottom, and have a small tube-shaped mouth.

Why do threadfin fish have filaments?

Threadfin filaments help the fish to find food by picking up vibrations of moving prey such as worms, prawns and crabs hiding in mud and sand. Threadfin have been reported to use their pectoral filaments to herd small fish and prawns into ‘bait balls’ to make them easier to capture. Barramundi accord

How long do threadfin shad live?

The lay sticky egg masses that clump to the substrate or floating objects. Few of these fish live to be older than 2 years or grow over 10cm long. Stocking: Large murky bodies of water are ideal for stocking threadfin shad due to threats from predation in small clear water bodies.

How big does an Indian threadfish need to be?

Indian Threadfish can grow up to 165 cm what is approximately 64 inches. So 1 specimen requires at least 19800cm 2 of water surface which is approximately 3069 square inch. We recommend you to keep it in fish tanks which are very large. ( e) Medium aquariums have at least 113 Litres (30 US Gallons).

What does the Indian threadfish eat?

The Indian threadfish is a predatory fish, consuming of a wide range of fishes, small squids, jellyfish and crustaceans. As with A. ciliaris, the trailing fins of juveniles are thought to resemble jellyfish medusae, causing predators to avoid the young fish.

What is another name for the Indian threadfish?

An unrelated species sometimes known by the name threadfin, Alectis indicus, is properly the Indian threadfish (family Carangidae ).

What do threadfins do in the ocean?

This attribute allows threadfins to enter estuaries and even rivers. They feed primarily on crustaceans and smaller fish. Presumed to be pelagic spawners, threadfins probably release many tiny, buoyant eggs into the water column, which then become part of the plankton.

What is the scientific name for the thread-like rays on fish?

In some species, such as the royal threadfin ( Pentanemus quinquarius ), the thread-like rays may extend well past the tail fin. This feature explains both the common name threadfin and the family name Polynemidae, from the Greek poly meaning “many” and nema meaning “filament”.

What is Indian threadfin fish used for?

The meat is very fine and it is usually used to make fish porridge for babies. The better quality threadfins will usually have a golden yellow hue to the skin. The easiest way to tell an Indian threadfin is the count the threadlike rays which are found just under the pectoral fins.

What is the scientific name of Indian threadfish?

The common name of the species, ‘Indian threadfish’ or ‘Indian threadfin’ refers to its distribution which includes Indian waters, and the characteristic elongated dorsal fins in juveniles. Other common names, such as mirror fish and diamond trevally, describe other aspects of the species’ appearance.

Is the four finger threadfin fish bigger than the Indian threadfin?

However as you can see from the photo, the fourfinger threadfin can sometimes be the larger species. The difference in the features of both fish is easily seen when you place them side by side. The eye is proportionally larger in the four finger threadfin and it has four threadlike filaments compared to the Indian threadfin.

How do you identify a threadfin fish?

As with wild caught fish, firmness of the flesh and slime on the body is a good indication of freshness. The easiest way to identify this threadfin is to count the threadlike filaments under its gills. There are four, hence its name. the diameter of the eye is also greater than the distance between the eye and the snout.

How do I introduce a threadfin rainbowfish to other fish?

Create a test fish community that includes the Threadfin Rainbowfish species and any other types of fish or crustacean you’d like to introduce – You can assess the best companions, tank size suitability, stocking levels based on filter type and volume and possible negative interactions and warnings as you build up your aquarium.

Why is it called a threadfin fish?

In some species, such as the royal threadfin (Pentanemus quinquarius), the thread-like rays may extend well past the tail fin. This feature explains both the common name threadfin and the family name Polynemidae, from the Greek poly meaning “many” and nema meaning “filament”.

What kind of fin does a threadfin rainbowfish have?

The male can be more vibrant and it is not uncommon for Threadfin Rainbowfish males to have a yellow or red first dorsal fin and red or reddish caudal fin lobes. The Threadfin Rainbowfish is present in south-central New Guinea and the Cape York Peninsula, Australia. It lives in slow-flowing streams, ditches, billabongs, swamps, and swampy lagoons.

What color is a threadfin shad?

The fins of the threadfin shad have a yellow color, especially the caudal fin. It is this yellowish coloring that makes chartreuse a common color in bass lures. The threadfin shad’s back is grey to blue with a dark spot on the shoulder.

Why are threadfin shad in the upper level of the water column?

This is why threadfin shad are found in the upper level of the water column. Plankton grows from the energy of the sun which only penetrates so deep. The threadfin shad is the most important forage to so many species in so many lakes.