01. Asian Arowana
The Asian Arowana is a freshwater fish that can be found across Southeast Asia on blackwater rivers, slow-moving waters and wetlands. They are also known by other names, such as: Dragonfish and Asian Bonytongue. Their diet includes fishes for adults and insects for juveniles or the young ones. The scales of Asian Arowanas are large and come in a variety of metallic colors from silver, black, green, brown or red. They also have long bodies and usually grow up to 90 cm. They also bear many teeth. Because the appearance of Asian Arowanas resembles that of a Chinese dragon, these fishes are often kept as pets in aquariums.
02. Blue Ringed Octopus
The Blue-ringed Octopus is an octopus that lives in the Pacific and Indian Oceans, specifically on coral reefs. It is considered as one of the world’s most venomous marine animals despite their small size (12 to 20 cm) and calm nature. They are known to be very dangerous to humans as they possess venom that is strong enough to kill humans. These dangerous animals are also notable for their yellowish skin with blue and black rings. When these octopuses are threatened, their skin darkens dramatically and the iridescent blue rings flashes as a warning display. Blue-ringed Octopus usually feeds on small crabs, shrimps and other small crustaceans. Blue-ringed octopuses spend much of their time hiding in crevices while displaying effective camouflage patterns with their dermal chromatophore cells.
03. Christmas Tree Worm
Christmas Tree Worms are marine worms usually found throughout the worlds tropical oceans. They are best known for their tubular body covered with beautifully colored spiral structures which they use for feeding and respiration. Because of its beauty, divers all over the world are interested in this particular worm. Christmas Tree Worms are also a popular subject in underwater photography. Moreover, some aquarists (aquarium enthusiasts) intently include in their aquariums some corals where Christmas Tree Worms usually live.
A Clownfish, which is also known as anemonefish is a well-recognized fish because of the movie, “Finding Nemo.” It is usually orange, yellow, reddish or blackish in color with white bars or markings all over its body. Its size ranges from 10-18 centimeters. It can also be found in coral reefs at the bottom of Indian Ocean, Pacific Ocean and the Red Sea. Commonly, the diet of Clownfishes includes small zooplankton (small organisms that floats in water), algae and the tentacles of anemone, marine creatures that possess tentacles.
05. Feather Duster Worm
Feather Duster Worms are worms that aren’t able to move on their own and anchor their tail to an underwater surface. Their head is typically concealed by feathery structures or a crown of fan-shaped appendages that they use for feeding. Their size ranges from tiny to more than 10 cm long. Feather Duster Worms can also be seen in a wide variety of colors or color combinations – yellow, orange, brown, reddish or white.
06. Flamingo Tongue Snail
The Flamingo Tongue Snails are small sea snails topically found in the tropical waters of the western Atlantic Ocean. They are bright orange- yellow in color with black rings or black markings all over their body. However, they may also be white or orange in color with no markings at all. Flamingo Tongue Snails are somehow elongated in shape and have an average size of 25-35 millimeters in length. Their upper surface is usually smooth and shiny.
07. Flower Hat Jelly
The Flower Hat Jelly is a type of jellyfish that originates in the West Pacific. They have glossy tentacles that coil when not in use. They also have a translucent body covered with opaque stripes. They can grow for up to 15 cm in diameter and live around 4-6 months only. Flower Hat Jellies usually feed on small fishes caught by their tentacles. The sting caused by their tentacles might be painful, but it is not deadly to humans. However, the sting may leave a rash on one’s skin.
08. Gold Lace Nudibranch
The Gold Lace Nudibranch is a pretty mollusk found in the waters around the Hawaiian Islands. It has a pale yellow translucent body covered with irregular yellow-orange lines. It also has little bumps all over its body, which are almost white in color. Its gills that protrude from its head resemble a tree branch and are white in color with black speckles. Furthermore, a Gold Lace Nudibranch is small about one to two inches long. It also feeds on sponges and other soft organisms.
09. Granulated Sea Star
Granulated Sea Stars are also known as Cushion Sea Stars and Doughboy Star. They are mainly seen in shallow waters at depths of up to 40 meters and are found on coral reefs. They have five large, short and thick arms. They are also typically pale pink in color, with brown clustered tiny dots in the middle part of their body. They can grow for up to 27 cm in diameter. Granulated Sea Stars commonly feed on algae, and dead animals. However, they may also eat small invertebrates and coral polyps.
10. Leafy Seadragon
Leafy Seadragons are marine creatures found along the southern and western coasts of Australia. Their name was derived from their appearance – a sea dragon with long leaf-like protrusions all over the body. These protrusions serve as camouflage that hides the creature from predators. In order to move, they have a pair of small transparent fins on the neck and a small transparent fin on the back near the tail. The size of Leafy Seadragon is about 20-24 cm. They mainly feed on plankton and small crustaceans.
11. The Mandarin Goby
The Mandarin Goby likes to hang out on the ocean floor in the coral reefs. Their beautiful blue color is made from a special pigment and they only grow to about 3-4 inches. They are Carnivores, and eat mostly small crustaceans, and they are slow, peaceful swimmers.
12. Moon Jellyfish
Moon Jellies or Saucer Jellies are a type of jellyfish that have a translucent body. They topically grow between 25-40 cm in diameter. They also have tentacles and four U-shaped structures that can be seen through the top of their bell/body. Moon Jellies eat by using their tentacles to gather planktons and mollusks and bring them into their body for digestion. In addition, Moon Jellies have limited motion. They even drift with the current, even when they are swimming.
13. Moorish Idol
The Moorish Idol is a marine fish which lives throughout the Indo-Pacific. Its name was derived from the Moors or Muslim people in Africa who believe that the fish is a bringer of happiness. They have a compressed, disk-like body which is banded in black, white, and yellow. They also have small fins, except for the fin on their back which is dramatically elongated. In addition, a Moorish Idol has a small mouth, a long, tubular snout and long bristle-like teeth. They mainly feed on sponges, corals, tunicates, and other invertebrates.
14. Bottlenose Dolphin
Bottlenose Dolphins are fully aquatic marine mammals that prefer to live in the warm waters. They are the most common type of dolphins and are highly regarded for their intelligence. In fact, they are usually trained to be featured on animal shows. When it comes to physical appearance, these dolphins have elongated nose and are gray in color with almost white underside. Their size ranges from 2 to 4 meters, while their weight is around 150 to 650. They also typically live in groups called pods, with around 10-30 members. Amazingly, Bottlenose Dolphins use sound like squeaks and whistles for communication, as well as body language like leaping from the water and slapping their tails on the water surface.
15. Sea Nettle
Sea Nettles are a type of jellyfish that lives in the tropical and subtropical parts of the Atlantic and Indo-Pacific Oceans. They can also be seen along the East Coast of the United States. They usually have pale, pinkish or yellowish coloration, with small, white dots and reddish-brown stripes. They also have a bell-shaped semi-transparent body, a mouth surrounded with tentacles and a “moderate” to “severe” sting that can cause allergic reaction to human but can kill smaller prey. Sea Nettles generally feed on zooplankton, other jellies and crustaceans. They paralyze and catch their prey using their stinging tentacles.
16. Sea Turtles
Sea Turtles have flippers instead of legs like a land turtle will have. They have been on this planet for 100 million years! The largest sea turtle is called the “leatherback” turtle and can grow up to seven feet long. They are carnivores, and love to eat crabs, shrimp, jellyfish, and other marine animals. Unlike turtles that are found on land, sea turtles cannot hide their head and flippers in their shell, making them vulnerable to predators such as sharks. Did you know that sea turtles can live up to 100 years and can hold their breath for five hours? Very cool indeed! Sea Turtles are considered as one of the most critically endangered animals in the world.
Angelfish are beautiful marine and freshwater fish that can range from 2 inches in length to about 24 inches in total. They come in a variety of different colors and are Omnivores, meaning they eat plants and animals (insects and small fish). They are known to be very smart, and can recognize their owners when kept as pets. Their bright colors let them hide from predators in the coral reefs and the colors are also used as a way to communicate with other fish.
18. Mantis Shrimp
Mantis Shrimps are marine crustaceans that can grow for up to 10 centimeters long. They usually live in shallow, tropical and sub-tropical marine habitats where they spend most of their life hidden in burrows and holes. Just like other crustaceans, Mantis Shrimps have a carapace or a bony shell that covers the rear part of their head down to the first four segments of their body. Their color varies from different shades of brown to vivid colors like green, blue, orange or red. They also have claws that resemble those what praying mantis have. These claws are powerful enough to kill a prey by spearing or dismemberment. In aquariums, larger Mantis Shrimps can break the aquarium glass with just a single strike.
19. Whale Shark
Whale Sharks are slow-moving sharks and the largest living type of fish. The largest confirmed individual is about 12.65 m long and weighs around 21.5 t. They can be seen in open waters of tropical oceans. They have very a large mouth and are filter-feeders, feeding exclusively on planktons, hence, they are regarded as harmless to humans. Whale Sharks also have 300 to 350 rows of tiny teeth and 10 filter pads which they utilize to filter feed. Furthermore, they also have a wide, flat head, small eyes located at the front, a white belly and a gray-colored body covered with yellow spots and stripes. In addition, Whale Sharks have fins on their back, fins on the sides and a tail fin with the upper fin larger than the lower fin.
A Lionfish is a beautiful but venomous marine fish that originates in Indo-Pacific. They are also known by different names such as, Zebrafish, Firefish or Butterfly-cod. They may come in various colorations including: red, white or cream with black bands. They also have venomous spiky fins and tentacles on the head region. Its size ranges from 5 to 45 cm in length, and weights from 0.025 to 1.3 kg. Topically, a Lionfish feeds on small fishes, invertebrates and mollusks.