Red Fin Thresher Pleco - L011 - Squaliforma emarginata

Red Fin Thresher Pleco (L011 - Squaliforma emarginata) is a beautifully streamlined and lesser-known pleco species, admired for its rich red to orange finnage and sleek, elongated body. Its unique appearance and manageable size make it a prized addition for pleco collectors and aquarists with well-maintained, mid-to-large aquariums.

Description:

Common Name: Red Fin Thresher Pleco

Scientific Name: Squaliforma emarginata

Family: Loricariidae

Size: 6–7 inches

Temperament: Peaceful

Difficulty: Moderate

Native Region:

South America (Rio Tocantins, Brazil)

Aquarium Setup:

Tank Size: Minimum 50 gallons

Temperature: 76–82°F

pH: 6.5–7.5

Hardness: Soft to moderate

Decor: Driftwood, smooth rocks, shaded caves, and moderate to strong water flow

Additional Tips:

• Tankmates: Peaceful community fish and non-aggressive bottom dwellers

• Diet: Omnivorous – feeds well on algae wafers, sinking pellets, and occasional protein-based foods

• Behavior: Generally shy and prefers cover; more active in low-light settings

• Filtration: Requires clean, well-oxygenated water with consistent parameters for long-term health