Nudibranchs

Nudibranchia

Brilliantly coloured sea slugs, the classic macro subject on almost every reef.

Encounter score51

ai researched

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Quick facts

The Nudibranchs (Nudibranchia) is a marine species divers can encounter. Typical size: 1–10 cm. Usually seen at 3–30 m depth. Where to see it: Malapascua.

Summarised from DIVE-SEEK's recorded catalogue data; omitted values are not yet recorded.

Taxonomic rank

higher_taxon

Typical size

1–10 cm (body_length)

Maximum size

60 cm

Typical depth

3–30 m

Maximum depth

100 m

Conservation status

Research in progress

Photography difficulty

3 /5

Activity pattern

Diurnal and nocturnal.

Description

Order-level record, not a species: Nudibranchia covers thousands of species and this single entry stands in for all of them until a dedicated macro sub-catalogue exists. Conservation status is not applicable at this rank.

Habitat

Reef, wreck, rubble and muck habitats worldwide.

Behaviour

Grazes slowly on sponges, hydroids and algae; many are toxic and advertise it with colour.

Diet

Sponges, hydroids, bryozoans and other nudibranchs.

Social behaviour

Solitary, pairing to mate.

Photography notes

The defining macro subject. Get the rhinophores sharp, shoot at the animal's level, and control background clutter.

Ask about Nudibranchs

Answers are built only from our cited catalogue records — where data is missing, the assistant says so instead of guessing.

Where to see it

Destinations

Encounter records link species to destinations only when a verified source supports them.

Malapascua

Philippines

Encounter likelihood: very_common

Provenance — each verified claim is linked to its source as records are published.