Plecostomus

Algae-Eating and Scavenging Catfish

The Plecostomus catfish, or simply “Pleco,” is one of the most popular and versatile aquarium fish in the world. Famous for their scavenging habits and bottom-dwelling charm, Plecos play a vital role in keeping tanks clean while adding unique character to freshwater setups.

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Originating from the fast-moving streams and rivers of the Amazon basin, Plecostomus are members of the Loricariidae family—armored catfish known for their sucker-like mouths and ability to cling to rocks and glass. Over time, these fish have adapted to a wide range of environments, making them both hardy and adaptable to aquarium life.

At AquariumFish.com, we proudly offer one of the largest selections of Plecostomus in the trade. From peaceful algae grazers to bold, carnivorous species, we have a Pleco for every tank and every aquarist. Whether you’re caring for a planted nano tank or a large show aquarium, there’s always a Pleco that fits perfectly.

The Many Faces of the Pleco

Plecos come in a broad range of colors, sizes, and behaviors. While most are omnivores, each species has unique feeding habits. Some, like the Vampire Pleco, prefer a meaty diet, while others—such as the Green Phantom Pleco—are dedicated algae eaters. These fish are hardy, adaptable, and bring both function and fascination to your aquarium.

  • Vampire Pleco (L-240) – striking black coloration with white spines; carnivorous
  • Green Phantom Pleco (L-200) – vivid green body; excellent algae grazer
  • Blue Phantom Pleco (L-128) – deep blue hue with spotted pattern; gentle and hardy
  • L-10A Red Lizard Pleco – small, slender species ideal for nano tanks
  • Alligator Pleco – large, armored species suited for aggressive community setups

As our founder often says, “There is a Pleco for every tank.” From the peaceful L-10A Pleco for small aquariums to the rugged Alligator Pleco for predator systems, these fish bring beauty, balance, and personality to any aquarium. We believe every aquarium should have at least one Pleco.

Why Choose Plecostomus?

  • Excellent algae eaters and natural scavengers
  • Wide variety of colors, sizes, and personalities
  • Adaptable to a range of freshwater aquarium setups
  • Durable and long-lived, ideal for both beginners and experts

Plecostomus Care Tips

  • Provide tanks 30 gallons or larger with driftwood or caves for shelter
  • Feed a balanced diet of sinking algae wafers, vegetables, and protein-based foods
  • Maintain clean water with moderate flow and good oxygenation
  • Monitor species size—some Plecos grow over 12 inches long

Explore related collections: Freshwater Fish · Corydoras Catfish · Algae Eaters

Plecostomus FAQs

Are Plecostomus good algae eaters?
Yes — most Plecos consume algae and leftover food, helping to maintain clean aquarium surfaces and balanced ecosystems. Some species, however, require supplemental protein or vegetables.
Can Plecos live with other fish?
Absolutely. Plecostomus are peaceful and compatible with most community and cichlid tanks. Just make sure to provide adequate space for larger species.
Do all Plecos stay small?
No — Plecostomus range widely in size. Some stay under 5 inches, while others like the Alligator Pleco can exceed 18 inches in length. Check adult size before purchase.

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