Ercolania annelyleorum
Ercolania annelyleorum is a vibrant reef‑dwelling sea slug prized for its quick bursts and elusive nature, attracting anglers seeking a challenging and colorful catch.
Family
Esocidae
Max Size
30 cm (12 inches) or 1.2 kg (2.6 lbs)
Habitat
Coral reefs, 5‑30 m depth in tropical Indo‑Pacific waters
Best Season
June to August (summer) when water temperatures peak
Best Time
Early morning and late afternoon
No distribution map available
Great Barrier Reef
AustraliaWorld-renowned reef system with abundant sea slugs, including Ercolania annelyleorum on its coral branches.
Best: June‑August
Komodo National Park
IndonesiaProtected marine area with rich kelp forests where the species thrives among macroalgae.
Best: April‑May, September‑October
Christmas Island
Australia (Territory)Remote island with pristine reefs; Ercolania annelyleorum is abundant on the lagoon’s seagrass beds.
Best: November‑February
Baa Atoll
MaldivesA UNESCO biosphere reserve where the warm currents support large populations of the slug on coral rubble.
Best: January‑March
Sharm El Sheikh – Red Sea
EgyptClear waters and abundant algae make this a hotspot for Ercolania annelyleorum divers and anglers alike.
Best: September‑November
Cabo Pulmo Marine Park
MexicoRocky reef with strong upwellings; the slug is found on the underside of large sponges.
Best: May‑July
Best bait: Live shrimp or small fish pieces