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AI illustration of adult Pterygoplichthys pardalis in left-facing side view; not a photograph.

Amazon sailfin catfish

Pterygoplichthys pardalis

Often sold small, this spotted pleco becomes a large fish whose diet extends beyond algae.

Adult length
Up to 57.8 cm
Water temperature
25–30 °C
pH
5.5–7.5
Hardness
10–20 dGH
Natural habitat
Occurs in rivers and streams.
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Appearance and identification

Dark leopard-like spots cover a paler body with a relatively smooth head-to-back outline.

Aquarium environment

Adult bulk restricts fine layouts and usable space. A small juvenile does not suit a small planted aquarium.

Diet and feeding

Offer suitable complete sinking foods plus plant and animal foods. It feeds less on algae with age.

Same-species behaviour

Plan adult housing early: a tank at least 180 cm long.

Sources

www.fishbase.se ↗ 2026-10-25

www.scotcat.com ↗ 2026-10-22

PeekFish · Ornamental fish

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