Suckermouth Catfish

The common pleco, Hypostomus plecostomus, is a freshwater catfish native to South America, popular in the aquarium trade for its algae-eating habits. It has a distinct armored body and a suckermouth used to attach to surfaces. Plecos are nocturnal and prefer hiding during the day. Though initially small, they can grow significantly, which makes them less suitable for small home aquariums.
Length~25 (max 50)
Weight~1 (max 3)
WaterFresh
Water Temp22-30° F
- Other namesCommon pleco
- Length~25 (max 50)
- Weight~1 (max 3)
- WaterFresh
- Water Temp22-30° F
Popular lures for Suckermouth Catfish
Regulation for Suckermouth Catfish
- Season-
- Bag limit-
- Vessel limit-
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- Min size-
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Living Conditions
🐟 Habitat preferences
- Prefers slow-moving freshwater rivers and streams with soft, sandy, or muddy bottoms
- Often hides among submerged roots, rocks, and driftwood during the day, becoming more active at night
- Feeds primarily on algae, plant material, and detritus found on submerged surfaces
- Adapts well to various water conditions but thrives best in warm, well-oxygenated environments
♻️ Life cycle and mating behavior
- Breeding typically occurs in burrows dug into riverbanks or other concealed locations
- Males guard the eggs until they hatch, displaying territorial behavior during the breeding season
- Juveniles remain hidden in crevices or vegetation for protection as they mature
- As they grow, plecos become more solitary and territorial, often requiring more space in their habitat