Description

This aquarium fish is tiny and streamlined. The male’s basic body color is silver but colors vary based on health, diet and environment conditions and have a longer fin and display more intense colors than females. Females are a rich honey color with green tints and translucent fins. The fish grow up to 2 inches (5cm).

Behavior

Their expressive and serene manner accompanied by their striking color, make them a great inhabitant for the aquarium. They are not aggressive. They prefer a well planted tank without harsh lighting and too much open space.

Diet

This fish are omnivorous. They mainly feed on small insects and flake foods.

As Pet – Facts about Threadfin Rainbowfish you should know

Threadfin Rainbowfish swim mostly in the top regions of the water. Water conditions required are; temperature: 73-84°F, hardness: 5 – 19Dgh and pH: 6.0 – 7.5.

They require a school of at least 5 fish. Have a variety of densely placed plants. Bogwood can be used to make the water acidic and swampy. They require 15 gallons of water, with 25 – 50% water changes per week and a tightly closed tank.

Breeding

Acidic and soft water is a prerequisite for breeding. The temperature must be 78°F (26°c). Java moss or a spawning mop must be used to breed. The eggs must be removed as they are laid and the fry fed with liquid fry food or micro-worms.

Sturgeon Description

Sturgeons have a primitive look, with a unique heterocercal tail where the upper part of the tail fin is longer than the lower part. Its body is covered by 5 rows of hard, bony scales. They have a tube-like mouth that can be found under the bony, elongated snout. The mouth protrudes several inches while the fish feeds on the bottom of the river. Their color is from gray-olive to brown on the top part and white on the underbelly.

Facts about Sturgeon Habitat and Life Cycle

The life cycle of a sturgeon is complex and it is still not clear as to how they reproduce. The only feature about their life cycle confirmed is that they migrate from saltwater to spawn in the brackish waters of the estuary. Although their sexual maturity depends on the habitat they are in, males usually reach sexual maturity at 3 years and females at 5 years.

Essential sturgeon facts for kids
Sturgeons are among the longest living fish in the world. They grow slowly but as they reach maturity, their only natural enemies are humans. This freshwater fish is already an endangered fish species.

Facts about Arapaima Behavior and Habitat

These fish inhabit swampy waters with low oxygen concentrations. Because of this environment, the fish has developed a unique breathing system. It has a lung-like lining inside its throat which enables the fish to take in gulps of air from the surface. The air ‘breathed’ in acts as a necessary supplementary source of oxygen for the fish. Unfortunately, this behavior of gulping in air makes the Arapaima very vulnerable to fishermen. The gulp can be heard and the fishermen follow the sound towards the fish. The fish is then speared or caught with large nets.

Arapaima Meat

The flesh of this fish is considered to be a very delicious delicacy and many tourists and natives alike seek it in South America.

Arapaima Fun Facts

These fish grow very fast and are very good swimmers, capable of leaping out of the water to catch birds on the low-hanging branches of the trees nearby. This tropical freshwater fish is not advisable to keep as a pet because of their size. However, they are good things to view in a public aquarium.

Distribution

The exact population of Aparaima in the wild is currently unknown due to the elusiveness of the fish.