Antennata lionfish

Pterois antennata

Also known as Spotfin lionfish, Broadbarred firefish, Ragged-finned lionfish, Antennata firefish

SaltwaterFish

Care at a glance

Temperature
75–81°F
24–27°C
pH
8.0–8.4
Adult size
7.9 in
20 cm
Minimum tank
79 gal
300 L
Temperament
Mostly peaceful
Social behavior
Solitary
Tankmates
With caution
Swim level
Middle
Difficulty
Medium
Breeding
No record
Rarity
Common
Reef safe
Reef safe with caution
Family
Scorpaenidae
Origin
Native to the Indo-Pacific, living on coral and rocky reefs where it shelters in caves by day and hunts at dusk.

Overview

Give a single antennata lionfish at least 300 litres with caves and open swimming room, at 24 to 27 C and pH 8.0 to 8.4. It is coral safe but will eat any fish or shrimp small enough to swallow, so choose larger tankmates. Feed thawed marine shrimp, silversides and chunks of fish from a feeding stick, and avoid a diet of only freshwater feeders, which cause fatty liver disease. Take great care during maintenance, since the spines are venomous even on a healthy-looking fish.

In the wild

The antennata lionfish is a mid-sized lionfish with long, separated pectoral rays that fan out like feathers and fine barring in red, brown and white. It has spotted membranes and a pair of long tentacles above the eyes. Slow and deliberate, it drifts out at dusk and corners small fish with its spread fins.

Good to know

Pterois antennata reaches around 20 cm and carries venom in the grooves of its dorsal, pelvic and anal spines, used purely for defence. A sting is intensely painful and best treated by immersing the wound in hot water, which breaks down the venom. It herds prey into a corner with its wide pectoral fins before a lightning gulp.

Did you know

Lionfish spread their fan-like pectoral fins to slowly herd smaller fish into a corner, then strike so fast that the prey vanishes in a single visible gulp.

Common questions

What size tank does an Antennata lionfish need?

An Antennata lionfish needs at least 79 gal (300 L). It spends most of its time in the middle.

What temperature and pH does an Antennata lionfish need?

An Antennata lionfish is comfortable at 75–81°F (24–27°C) with a pH of 8.0–8.4.

How big does an Antennata lionfish get?

An adult Antennata lionfish reaches about 7.9 in (20 cm).

Related species