Saltwater Fish
Dascyllus reticulatus
Dascyllus reticulatus - Reticulated Damselfish

Dascyllus reticulatus (Reticulated Damselfish)

Species Description…

Scientific Name: Dascyllus reticulatus
Common Name: Reticulated Damselfish
Species Group: Damselfish
Habitat: Reef Safe
Care Level: Beginner
Temperament: Semi-aggressive
Diet Type: Omnivore
Role in Aquarium: Community Fish
Max Fish Length: 3 (inches)
Min Aquarium Size: 30 (gallons)
Native Range: Indo-Pacific, including Indonesia, the Philippines, and the Great Barrier Reef

Overview

  • Native to the Indo-Pacific, frequently found in shallow lagoons, coral reefs, and seagrass beds.
  • Recognized by its unique reticulated pattern, with a combination of dark and light patches across its body.
  • A hardy and adaptable species that thrives in a variety of reef environments.
  • Can be territorial, especially as it matures, making careful tankmate selection crucial.
  • Best suited for aquariums with stable water conditions, live rock formations, and ample swimming space.

Feeding

  • Omnivorous, feeding on plankton, algae, and small invertebrates in the wild.
  • Thrives on a diet of high-quality marine flakes, frozen mysis shrimp, brine shrimp, and algae-based foods.
  • Readily accepts prepared foods but benefits from occasional live or frozen food supplementation.
  • Should be fed multiple times per day to maintain energy levels and promote optimal health.
  • A well-balanced diet enhances coloration and supports a strong immune system.

Habitat

  • Prefers reef-associated environments with moderate water flow and diverse coral structures.
  • Frequently seen schooling near coral heads, branching corals, and reef outcroppings.
  • Aquarium setups should include live rock for shelter and open areas for swimming.
  • Requires stable water parameters and high-quality filtration to prevent stress.
  • Providing shaded areas and structured environments supports natural schooling behaviors.

Fish Care

  • Optimal water temperature: 74-80°F (23-27°C) to maintain health and activity.
  • Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
  • Requires regular water changes and high-quality filtration to maintain clean water conditions.
  • Reef-safe but can display territorial behavior towards smaller tankmates, particularly in confined spaces.
  • Providing rock formations and coral branches helps reduce aggression by allowing fish to establish territories.

Compatibility

  • Semi-aggressive and best kept with other similarly robust fish.
  • Compatible with clownfish, wrasses, tangs, and other moderately tempered reef species.
  • Should not be housed with timid or slow-moving fish that may become targets of aggression.
  • Best kept in small groups to distribute aggression among their own species.
  • Providing a well-structured environment with sufficient swimming space reduces territorial disputes.

Aquarium Behavior

  • An energetic swimmer that establishes small territories around rock and coral formations.
  • Frequently observed schooling in younger stages but may become more solitary or aggressive as it matures.
  • More confident and less aggressive when given enough space and structured environments.
  • Providing a natural reef-like setup encourages active swimming and natural social behaviors.
  • Over time, it may recognize its caretaker and become more interactive, especially during feeding sessions.