Red Fin Cactus Pleco Pseudancistrus Serratus

Scientific Name: Pseudancistrus Serratus

Key Features

• Size: Grows up to 12–14 inches (30–35 cm) in length.
• Appearance:
  • Olive-green to brown body covered in sharp, cactus-like lateral spines.
  • Vibrant orange-red to bright red fins.
  • A rare "Super Red" variant from Tucuruí displays intense, vivid red coloration.
• Lifespan: Can live for 10–15+ years with proper care.

Tank Requirements & Water Parameters

• Minimum Tank Size:
  A 125-gallon tank (approx. 470 liters) is recommended for a single adult due to their large size and bioload.

• Water Flow:
  Strong water movement and heavy, robust filtration with high aeration are essential.

• Water Parameters:

  • Temperature: 77–82°F (25–28°C).
  • pH: 6.5–7.5.
  • Low nitrates (<30 ppm) with pristine, ammonia/nitrite-free water.

• Decor:
  Requires plenty of driftwood, rock caves, and hiding spots to establish territories.

Diet & Behavior

• Diet:
  Primarily carnivorous, they prefer:

  • Protein-rich foods like chopped prawns and mussels.
  • High-quality sinking carnivorous or omnivorous pellets.
  • Occasional vegetable matter.

• Temperament:
  Bold, boisterous, and territorial—especially toward other bottom-dwellers and large plecos.

• Care Level:
  Intermediate to advanced. Young specimens can be particularly sensitive to water quality shifts.

Carefully consider the needs of the Red Fin Cactus Pleco to ensure a thriving and vibrant addition to your aquarium.