Scoppion Blenny

Species Profile

• Scientific Name: Synchiropus sp.
• Common Name: Often miscalled Scorpion Blenny — better known as Scooter Blenny, Mandarinfish, or Dragonet
• Adult Size: 2.5–3 inches (6–8 cm), depending on species
• Life Expectancy: 3–5 years in captivity with proper care
• Habitat: Shallow lagoons and coral reefs in the Indo-Pacific

Tank Requirements

• Minimum Tank Size: 30 gallons (113 liters) for a single individual; 55+ gallons if keeping a pair or with other pod-eating fish
• Ideal Temperature: 24–27°C (75–81°F)
• pH Range: 8.1–8.4
• Water Hardness: 8–12 dKH
• Temperament: Peaceful; shy and non-aggressive — best kept with calm tank mates

Diet & Nutrition

• Omnivorous: Technically yes, but micro-carnivorous in feeding behavior
  • Primarily feeds on copepods, amphipods, and other small live prey
  • May be trained to accept frozen foods (e.g., brine or mysis shrimp), but this varies by individual
  • Requires a mature tank with a well-established pod population for long-term health

Appearance

• Elongated body with wing-like pectoral fins

• Coloration varies by species:

  • S. splendidus (Mandarinfish): vibrant blue, orange, and green with psychedelic patterns
  • S. ocellatus (Scooter Blenny): mottled brown and cream with an ocellated spot on the dorsal fin

Distinctive Features

• Wing-like fins used to "scoot" along the substrate (hence the name Scooter Blenny)
• Continuous foraging behavior on rock surfaces and sand
• Unlike true blennies or scorpionfish, they lack venom or defensive spines
• Males typically have an elongated dorsal fin used in mating displays