What does OB cichlid mean?

What is the size of the hump on the fish head?

A distinct feature of the fish is the hump on its head, which is present in both sexes and grows bigger as the fish matures. It can attain a length of about 14 inches.

What kind of fish is a humphead wrasse?

The colossal, colorful humphead wrasse (also known as the Napoleon wrasse) is one of the largest fish found in coral reefs. They are easily identifiable by their thick lips and the prominent bump on their foreheads. The coloring of adult humphead wrasses can range from a dull blue-green to brilliant shades of green or purplish-blue.

Are flowerhorn cichlids banned in Australia?

United States and European hobbyists keep flowerhorns, but importing Flowerhorn Cichlids is banned in Australia. The first generation of Flowerhorn cichlids available on the market was the Hua Luo Han. These fish were bred in about 1998. Since then, their hybrids became quite popular.

What is the bump on a fish head called?

Mostly the male fish has a bump on his head. This bump is commonly called a nuchal bump. Just a few fish species have this kind of bump on their forehead, but it is a precise cut identification method for gender. This bump is right about the mouth and just between the eyes.

What is humphead wrasse?

The humphead wrasse (Cheilinus undulatus) is a large species of wrasse mainly found on coral reefs in the Indo-Pacific region.

How do humphead wrasses mate?

At certain times of the year humphead wrasses gather together in large mating groups which comprise both males and females. There can be over 100 humphead wrasses in these groups. Pairs form within the group, and mating commences. Mating involves males fertilizing eggs that the female has released into the water.

What do humphead wrasse eat?

The humphead wrasse’s diet consists of mollusks, fish, echinoderms (star fish, sea urchins, etc.) and crustaceans. Its diet includes several toxic species, such as sea hares, boxfish and the crown-of-thorns starfish – a species that is known to destroy coral reefs.

Is humphead wrasse the most expensive live reef fish?

WWF urges local governments in the Coral Triangle to stop the trade and consumption of humphead wrasse—one of the most expensive live reef fishes in the world.

What is flowerhorn cichlid?

Flowerhorn Cichlid is a species of fish that is man-made and boasts an impressive lifespan of up to 12 years. They originate from Malaysian fish keepers who bred them at the turn of the century. Ever since appearing on the marketplace in 1996, they have been rising in popularity.

Where do cichlids come from and where do they live?

Flowerhorn Cichlids are human-made in origin. As a result, they don’t have a natural habitat. These fish are never found somewhere naturally in the wild, if they are, they’ve been introduced by humans.

How can you tell if a Flowerhorn cichlid is male or female?

Their pectoral fins are translucent and much shorter than their others. Both male and female fish can grow up to 30-40 cm in size. One of the easiest ways to differentiating male flowerhorn cichlids from other fish is their hump on their forehead.

Are flowerhorns banned in Australia?

Numerous cast-off flowerhorns have been released to the wild, especially in Singapore and Malaysia, where they have become an invasive pest animal. Their importation is banned in Australia.

Why are flowerhorns not popular in aquariums?

Within the aquarium hobby, flowerhorns are not favored because of the difficulty of breeding them. The majority of flowerhorn males are sterile (cannot reproduce), so finding one that can is time consuming. Hobbyists have to wait until 8–10 months for a male fish to reach sexual maturity then pair it with a female to test fertility.

What is flowerhorn cichlids?

The Red devil and the Blood Parrot were bred together, creating the Flowerhorn. The fish were first produced in Malaysia, Thailand, and Taiwan. Asian fish hobbyists then took a liking to Flowerhorn Cichlids. United States and European hobbyists keep flowerhorns, but importing Flowerhorn Cichlids is banned in Australia.

Are flowerhorns bad for the environment?

Interest in flowerhorns resulted in culling of surplus and deformed fish, some of which were dumped in the wild in Malaysia and Singapore, where they survived and disrupted riverine and pond ecosystems. Like many other cichlids, flowerhorns are aggressive and can breed quickly, competing with and eating native fish.

What does a lump on a fish look like?

A small lump starts to grow on the fish, usually on the head or body. The growth may be pink, whitish or even black. It could be lumpy like cauliflower or smooth.

What is the big bump on a shark head called?

Hammerhead Sharks have large surface areas on their heads to better detect prey with Ampllae of Lorenzini. got the nastiest bump ever, but that big bump on its head is actually a nuchal hump, also known as a kok. The formation of this forehead bulge is hormonally induced and swells up on male cichlid fish right around mating time.

Are male or female anglerfish bigger?

Unlike other anglerfish, ceratioid anglerfish show extreme sexual dimorphism — that is, females are much larger than males. In fact, males of the anglerfish species Photocorynus spiniceps compete for the title of the world’s smallest vertebrate.

Do male and female fish go through metamorphosis?

Both males and females go through metamorphosis as they develop into adults, Pietsch said. Females gain the large teeth and fleshy lure the fish are known for, while males often grow large, well-developed eyes and big nostrils.

What is this bump on my Goldfish’s head?

My gold fish developed a bum on his head. He was okay yesterday I just came from school and barely notice it can you guys pleas help he is 4 years old I don’t want to lose him I hate to say this but the bump may be a tumor. And in some cases, the tumors may be cancerous. They can also grow to get unbelievably huge, FAST. And multiply in number.