Betta are small fish that can range in size from 1 inch (2.5 cm) long to 5.5 inches (14 cm) long depending on the Betta species. Unlike most fish, Bettas are what we scientist call anabantoids. This means they can breathe air using a unique organ called a labyrinth. This is why Bettas can be found in what most would consider to be unlikely places in the wild such as rice paddies, slow-moving streams, drainage ditches, and large puddles.

In the wild, the blue tang can be found in the reefs of the Australia, Japan, Indonesia, New Caledonia, Philippines, Samoa, and Sri Lanka. This extremely popular marine aquarium fish prefer to live in pairs or in small groups of between 8 and 14 fish. They can often be found near cauliflower corals.

Young blue tang love to eat Plankton. Adults feed on plankton and algae.^[7] Spawning occurs during late afternoon and evening hours. The blue tang is important to the health or coral reefs because it eats the algae that might otherwise spread and choke corals.

The Ryukin can grow to 8 inches (21 centimeters) in length with some reports as long as 10 inches in larger aquariums and ponds.

The Ryukin is thought to have originated in China but its’ name is Japanese it was said to have arrived in through the Japanese Ryukyu Islands. Ryukin historical references date as far back as 1833, but it is thought to have first landed in the Ryukyu Islands as early as the 1770s.