Clownfish

Identification features

Clownfish are oval-bodied damselfish with bold white bars on orange, maroon or dark backgrounds depending on species. Amphiprion ocellaris and A. percula are the classic orange forms with three white bars; many other Amphiprion and Premnas species differ in bar number and colour.

Key clues: number and thickness of white bars, presence of black edging on bars, body base colour, and whether the fish is nestled in a specific anemone. Juveniles can show slightly different proportions.

Lookalikes include other damselfish that hover near coral but lack the anemone partnership. Always note the host anemone—many clownfish species prefer particular hosts.

• Bold vertical white bars
• Oval compressed body
• Always associated with an anemone
• Small size, often under 12 cm

Habitat and behaviour

Found on shallow tropical reefs where host anemones occur, often 1–15 m. They rarely stray far from the anemone, which provides shelter from predators.

Social groups may include a breeding pair and smaller subordinates. They fan eggs on rock beside the anemone. Touching anemones or chasing fish stresses both partners.

Where and when

Common across the Indo-Pacific; Maldives and many tropical destinations host several species. The Red Sea has its own anemonefish assemblages. Mediterranean and Canary reefs generally lack true clownfish—so sightings there are unlikely.

Any calm reef day with healthy anemones can produce sightings; no special season is required beyond healthy reef conditions.

Dive tips

Hover neutrally buoyant and photograph from a respectful distance. Do not probe anemones with fingers or camera strobes at point-blank range.

After the dive, use Scuba Steve’s fish identification app to compare bar patterns and host anemone clues against lookalikes.

Frequently asked questions