Devil Firefish Care Guide

Pterois miles · Saltwater Lionfish

Devil Firefish
AI-generated illustration of Devil Firefish
Adult size
~15″ (38 cm)
Suggested tank
75+ gal
Placement
Middle to Lower
Flow
Medium

What Devil Firefish look like

Pterois miles, commonly known as the Devil Firefish, exhibits a striking and ornate morphology characterized by elongated dorsal fin spines that are venomous and capable of delivering a painful sting. This species can reach a maximum adult size of approximately 15 inches (38 cm) in total length. Sexual dimorphism is subtle, with males typically displaying slightly larger fins and more vibrant coloration compared to females. The body is adorned with vertical red, white, and brown stripes that provide effective camouflage among coral reefs. Notable morphological features include a broad, flattened head, large pectoral fins that are fan-like and can be spread wide to create an intimidating display, and a series of venomous spines along the dorsal and anal fins, which serve as a defensive adaptation against predators.

Behavior & temperament

The Devil Firefish is primarily a solitary species, often found hovering near the substrate or among coral formations, where it exhibits a territorial behavior. It is a nocturnal predator, employing ambush tactics to capture prey, which includes small fish and crustaceans. During breeding, males may engage in elaborate courtship displays to attract females. The species is generally characterized by a calm demeanor but can exhibit aggressive behavior when threatened or during territorial disputes. Its ability to expand its fins and display its venomous spines serves as a warning to potential aggressors, reinforcing its position as a formidable predator in its habitat.

Diet & feeding

Pterois miles is a carnivorous species that primarily preys on small fish and crustaceans in the wild. In captivity, it requires a diet consisting of high-quality frozen or live foods such as shrimp, silversides, and other meaty offerings to maintain optimal health.

Behind the name

The genus name 'Pterois' is derived from the Greek word 'pteron,' meaning 'wing' or 'fin,' while the species name 'miles' is thought to originate from the Latin word for 'soldier,' possibly referring to its formidable appearance and defensive adaptations.

Plan your tank

Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.

Keeping Devil Firefish?

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