Freckled/Blacksided Hawkfish

Introduction

The Freckled Hawkfish is a colorful, hardy marine species known for its distinctive spotted appearance and habit of perching on rocks and coral. Its compact size and active personality make it a favorite for reef tank enthusiasts.

Scientific Name

Cirrhitichthys aprinus

Common Name

• Freckled Hawkfish

• Spotted Hawkfish

Water Quality and Temperature

• Temperature: 24°C – 28°C (75°F – 82°F)

• pH: 8.1 – 8.4

• Salinity: 1.020 – 1.025

• Hardness: 8 – 12 dKH

• Requires clean, well-filtered water with moderate flow

Feeding

• Diet: Carnivorous

• Feed with:

  • Frozen or live foods (brine shrimp, mysis shrimp, chopped seafood)

  • High-quality marine pellets or flakes for carnivores

• Feed 2–3 times per day

Tank Mates

• Generally peaceful, but may show territorial behavior

• Suitable companions include:

  • Gobies

  • Blennies

  • Small wrasses

• Avoid:

  • Very small crustaceans (may be eaten)

  • Large, aggressive fish

Substrates and Tank Decorations

• Sandy or fine gravel substrate

• Plenty of live rocks for perching and hiding

• Coral-friendly but prefers open areas for observation

• Moderate water movement enhances natural behavior

Suitable Plants

• Not plant-focused, but can coexist with:

  • Marine macroalgae like Chaetomorpha

  • Coral and coralline algae-covered rocks

Sexing

• Males and females appear very similar

• Subtle differences may appear during spawning

• No definitive external traits for reliable sexing

Breeding

• Rare in home aquariums

• Pelagic spawners—release eggs and sperm into open water

• Larvae are delicate and require specialized rearing tanks

Maximum Size and Longevity

• Size: Up to 8 cm (3 inches)

• Lifespan: 5–7 years in captivity with proper care

General Information

The Freckled Hawkfish is active and alert, often seen perching in a “watchdog” manner. It’s a solitary fish that does well in both community and species-specific tanks when provided space and structure.

A Fun Fact

Freckled Hawkfish don’t have swim bladders! Instead of swimming constantly, they rest on rocks and corals, giving them their signature “hawk-like” posture and name.