Saltwater Aquarist

Indigo Basslet

(Hypoplectrus indigo)

Indigo Basslet

Species Description…

Scientific Name: Hypoplectrus indigo
Common Name: Indigo Basslet
Species Group: Sea Basses & Groupers
Habitat: Reef Safe with Caution
Care Level: Intermediate
Temperament: Semi-aggressive
Diet Type: Carnivore
Role in Aquarium: Showpiece Fish
Max Fish Length: 6 (inches)
Min Aquarium Size: 65 (gallons)
Native Range: Western Atlantic, Caribbean Sea

Overview

  • Native to the Caribbean Sea, commonly found near coral reefs and rocky outcrops.
  • Distinguished by its mesmerizing deep indigo-blue coloration, often accented with subtle markings.
  • Prefers a structured reef environment where it can establish a secure territory.
  • Ideal for experienced aquarists looking for a visually striking, yet manageable species.

Feeding

  • Primarily carnivorous, preying on small crustaceans, plankton, and tiny fish in the wild.
  • Accepts frozen mysis shrimp, krill, finely chopped seafood, and marine pellets in aquariums.
  • Encouraging a diverse diet enhances health, coloration, and natural hunting instincts.
  • Feeding twice daily ensures steady energy levels and overall vitality.

Habitat

  • Typically resides in reef environments with complex rock formations and hiding spots.
  • Requires an aquarium setup with live rock caves, crevices, and overhangs for shelter.
  • Prefers moderate water currents that simulate natural reef conditions.
  • Avoids overly bright lighting; subdued illumination mimics its native habitat.

Fish Care

  • Optimal water temperature: 75-81°F (24-27°C).
  • pH level: 8.1-8.4, with a specific gravity of 1.023-1.026.
  • Regular water changes and a stable environment are crucial for long-term health.
  • Adapts well to captivity when provided with high water quality and a proper diet.

Compatibility

  • Semi-aggressive; territorial tendencies increase in smaller tanks.
  • Best housed with other assertive but non-aggressive reef fish.
  • Avoid keeping with timid or slow-moving fish, as it may establish dominance.
  • Works well in reef tanks but should not be housed with very small ornamental shrimp.

Aquarium Behavior

  • Observant and curious, often seen patrolling the aquarium looking for food.
  • Defends its favorite hiding spots, occasionally displaying dominance over intruders.
  • Becomes more confident over time, especially in a well-structured reef setup.
  • Excels in a stable, low-stress environment with minimal disruptions.