Feeding Your Fish Tips: Give your fish a variety of tropical fish food and not just flakes. Read the nutritional information on the canister of food to see what vitamins and minerals your fish is getting. Flakes can be the primary diet for many fish because they are packed with the vitamins and minerals your fish needs. However, try to supplement their diet with other types of food every once in a while. You should see better colors and increased vitality by varying their diet.
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The beluga or European sturgeon (Huso huso) is a species of anadromous fish in the sturgeon family (Acipenseridae) of order Acipenseriformes. It is found primarily in the Caspian and Black Sea basins, and occasionally in the Adriatic Sea. Heavily fished for the female’s valuable roe—known as beluga caviar— the beluga is a huge (some documented specimens attain nearly 6 meters [19 feet]), slow-growing and late-maturing fish that can live for 118 years. The species’ numbers have been greatly reduced by overfishing and poaching, prompting many governments to enact restrictions on its trade.
The beluga is a large predator which feeds on other fish. Beluga sturgeons are fish, and are unrelated to the (mammalian) beluga whale.
As do many sturgeons, the beluga travels upstream in rivers to spawn. Accordingly, sturgeons are sometimes likened to sea fish; however most scientists consider them to be river fish.
Unconfirmed reports suggest that belugas may reach a length of up to 8.6 m (28 ft) and weigh as much as 2,700 kilograms (5,940 lbs), making them the largest freshwater fish in the world, larger even than the Mekong giant catfish or the pirarucu. At this mass, the beluga would be even heavier than the ocean sunfish, generally recognized as the largest of bony fishes. But the largest generally accepted record is of the female taken in 1827 in the Volga estuary at 1,476 kg (3,249 lbs) and 7.2 m (24 ft). Nevertheless, some scientists still consider the Mekong giant catfish to be the largest freshwater fish, owing to sturgeons’ ability to survive in seawater. Beluga of such great sizes are always very old (continuing to grow throughout life) and have become increasingly rare in recent decades due to the heavy fishing of this species. Today, Belugas that are caught are generally 142-328 cm (4.7-10.9 feet) long and weigh 19-264 kg (42-582 lbs). The female beluga is typically 20% larger than the male.
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