Rosy Blenny – Malacoctenus macropus

Description

The Rosy Blenny (Malacoctenus macropus) is a charming, small-bodied labrisomid blenny known for its subtle rosy hues, lively personality, and excellent adaptability. Native to shallow reefs, seagrass beds, and sponge habitats throughout the Caribbean, Gulf of Mexico, and southern Florida, this species thrives in well‑established marine aquariums and brings constant motion and character to nano and mid‑sized reef systems.

Behavior & Temperament
Rosy Blennies are peaceful, bottom‑oriented fish that enjoy hopping between rocks and resting on ledges. They coexist well with other small, non‑aggressive species. Their inquisitive nature makes them a delightful addition to community reef tanks.

Habitat & Care Requirements

• • Tank size: 10 gallons or larger
  • Environment: Rockwork with caves, rubble zones, and hiding spots
  • Depth preference: Naturally found from the surface to 8 m (26 ft), most common in very shallow water
  • Diet: Carnivorous—accepts frozen foods, small meaty items, and high‑quality prepared diets

Key Features

• Compact size: Reaches up to 5.5 cm (2.2 in) total length—ideal for nano tanks
• Natural coloration: Soft pinkish tones with fine spotting and subtle patterning
• Active and curious: Often perches on rockwork and explores crevices
• Reef‑safe: Does not harm corals or sessile invertebrates
• Hardy species: Well-suited for both beginner and experienced marine keepers
• Wild origin: Found from the Bahamas and southern Florida to northern South America