“Sucker Fish” It’s believed that sucker fish first evolved roughly 50 million years ago

Sucker fish belong to the family Catostomidae and live in freshwater environments across the world.

It’s believed that sucker fish first evolved roughly 50 million years ago and today more than 79 species have been identified.

Although sucker fish are bony fish, they’ve historically been an important food source and can be found in streams and rivers across not only America, but also other countries such as China.

Sucker fish are different from the species Hypostomus plecostomus, which is commonly called the ‘suckermouth catfish.’

The species is commonly used in aquariums and is frequently called the ‘janitor fish’ as it cleans algae build up.

Remoras are another fish family often colloquially called ‘sucker fish’ thanks to their sucker-like organ that allow them to attach to large marine animals like sharks.

Sucker fishes are robust fishes with smooth-edged and cycloid scales on their bodies.

Their eyes are dark olive with brassy reflections. They are recognized by their suckermouth hence the name suckerfish.

Sucker fishes are 2.5-100 cm which is 20 times bigger than the smallest fish in the world called Paedocypris which is 10.3 mm in size.

A sucker fish can weigh a minimum of 2-6 lb (1.6 kg). This amount can vary for the particular type of species as well.

Sucker fishes move at an adequate speed and are suited to live only in freshwater bodies or aquariums where there is a supply of fresh water constantly.

Sucker fishes are omnivores and consume invertebrates like plants and algae. The common plecostomus can survive on algae alone as well as flaky food of any kind.

Sucker fish exist in freshwater bodies like ponds, lakes, and wetlands. They live at the bottom of the water body and consume plants, animals, and insects.

If they are in an aquarium, a clean coffee can or a small flower pot can be used by the male as a breeding location.

After mating the females lay eggs,  close to 2000 eggs, and it takes about ten days for them to hatch.

Since the adult fishes have a habit of feeding on remains, it’s essential to transfer the eggs into another tank without other species and can then be transferred back once they grow up.

Both male and female sucker fishes have similar characteristics hence it’s essential to identify which one they are by consulting a professional.

In their natural habitat, however, they find the appropriate conditions themselves and mate to reproduce.

Sucker fishes live long lives, approximately 10-20 years as compared to other fishes who live shorter lives.

Are they poisonous?

They possess tiny spines all over their body which can be considered toxic and poisonous in nature however,

the white sucker fish is considered good to consume for humans.

Ref: guideyourpet, kidadl, oregonwild, discusguy, projectnoah, a-z-animals, fishkeepingworld, britannica, fishkeepingworld

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Source: Siamtoo.com