Carnegiella strigata

The marbled hatchetfish, or Carnegiella strigata, is an interesting species that gives an aquarium a special charm. Its elegantly patterned body and unique shape set it apart from other freshwater fish.

Aquarium enthusiasts love this little peaceful fish for its eye-catching appearance and intriguing behavior. The Carnegiella strigata, well-known for its capacity to leap out of the water in response to fear, infuses the tank with beauty as well as a hint of excitement.

The marbled hatchetfish has certain needs that must be satisfied in order to maintain its health and happiness, but overall care is quite simple. This delicate fish will flourish if its tank mates, food, and environment are all right.

Habitat and range

Has a wide current distribution range that includes the Rio Orinoco in Venezuela and the Amazon in Bolivia, Brazil, Peru, and Colombia.

The Rio Negro River basin in Brazil is where the majority of fish used in ornamental trade are caught.

Carnegiella strigata inhabits "black water" exclusively.

The habitats in the Rio Negro River basin are distinguished by dense coastal vegetation that frequently hangs over the edge, and by fallen leaves, branches, and tree roots covering the bottom.

The water is typically brownish in color from the presence of humic acids released during the breakdown of organic matter and is acidic with negligible carbonate hardness.

The Rio Negro River has a sizable floodplain, which is a section of the river valley that floods when the water level rises to a height of up to 15 meters during the annual rainy season.

Small fish species like C. strigata migrate upstream into the river tributaries during floods, where they feed and breed before retreating back into the tributaries when the water recedes.

Description

Unusual shape for a fish. The abdominal profile nearly forms a straight line from the beginning of the caudal fin to the small pelvic fins. There is some convexity in the dorsal profile. The dorsal fin is located near the tail, far back. With their upward orientation and twice the length of the body, the pectoral (lateral) fins resemble wings. Their fins are not adipose.

The fish’s primary hue is silvery, with hints of yellow, green, and occasionally purple. Three non-linear, possibly spotty black or brown stripes run across the abdominal area. It has a dark brown back. The fins have a faint golden hue and are transparent.

Size

30 to 35 mm is the maximum standard length.

Aquarium

A minimum surface area of 75 x 30 cm is advised because this species needs to be housed in a schooling setting.

Should ideally be kept in an aquarium that is densely planted, ideally with a dark substrate and a few floating plants, since the fish will tend to gather near the surface where they spend nearly all of their time.

Branches and driftwood will help to recreate the original scenery. You can also add dried leaves, which will decompose and form bacterial colonies. In addition to tannin and other chemicals that are thought to be advantageous, these microorganisms can provide the fry with a valuable secondary food source.

With a tight-fitting lid and low to moderate water movement, this species may leap out of the water when startled.

Water parameters

Outside temperature: 20–28°C

Hardness range: 2–19 DGH

The Marbled Hatchetfish, or Carnegiella strigata, is a small, peaceful freshwater fish that is well-liked by aquarium enthusiasts due to its remarkable marble-like patterns and distinctive body shape. This fish is best kept in groups so that it feels secure. It does best in well-kept, heavily planted aquariums. Carnegiella strigata is a hardy species that brings beauty and tranquility to any aquarium, despite its delicate appearance.

Feeding

Initially, Carnegiella marbled is a predator that feeds on invertebrates, both aquatic and terrestrial, as well as other zooplankton that is found on or near the water’s surface.

It will take appropriately sized dried foods in an aquarium, but it also needs to be fed a regular diet of frozen and small live foods, such as Daphnia, Moina, and Artemia nauplii.

Behavior and Compatibility

Very calm, but because of its small size and timid nature, the C. strigata is not a good fish for a community aquarium.

Best kept with small callichthyid or loricariid catfish and calm, similar-sized characins. Because Marbled Wedgebelly prefer to stay in the middle or upper water levels of aquariums and do not bother their fry, they are also excellent tankmates for Apistogramma and other dwarf cichlids.

The Carnegiella marble (Carnegiella Strigata) is a flock fish, so buy/keep as many as you can, ideally 10 or more. Aggression is divided among individuals in large groups, and the fish become bolder and exhibit more natural behavior and color.

Sexual Dimorphism

Compared to other individuals, some grow larger and more rounded in shape; these are most likely adult females.

The marbled hatchetfish, or Carnegiella strigata, is a distinctive and intriguing addition to any aquarium. It is distinguished from other fish species by its unique body form and surface-dwelling habits.

These fish flourish in a well-planted tank with lots of hiding places because they are calm fish by nature. Their predilection for the higher reaches of the water column gives your aquarium arrangement a fascinating dynamic.

Carnegiella strigata can thrive in your aquarium and lead an active life if given the right care, which includes feeding them small insects and premium flakes. They add a little bit of the wild to your house with their fascinating appearance and lively presence.

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