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Otocinclus is a genus of freshwater catfish from the family Loricariidae. There are around 19 species of Otocinclus and they come in all different sizes, patterns and colors. They’re often referred to as “Otos” or “dwarf suckers”.

They are native to South America, mainly the rivers of North Argentina and Venezuela. Unusually for South American tropical fish, they are not found in the large Amazon River which runs through the continent.

Most fish are added to a tank for their appearance, but Otos have a bonus purpose – they are great at clearing up algae.

If algae is getting out of control in your tank, these fish will work wonders and quickly graze the algae down.

They are great for beginners and won’t take up much of your time.

Otocinclus are one of the very few fish that eat the black beard algae and are popular amogst shrimp keepers as they do not eat the shrimp or their young


  • Species – Otocinclus
  • Common Name – Otto’s
  • Origin – South America
  • Diet – Omnivore
  • PH Range – 6.5 – 7.5
  • Temperature – Tropical 22-26°c
  • Current Size – approximately 4cm (Grows to approximately 5cm)


AU$22.50 Regular Price
AU$20.25Sale Price

Tropical Fish Sale

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