Picasso Triggerfish
Rhinecanthus aculeatus
A swimming artwork with a clever locking spine.
Picasso Triggerfish look as if an artist painted them with bold blue, black, yellow, and white lines. They patrol shallow lagoons and can wedge themselves securely into reef cracks.
Find this SeaPal in the card gallery
From field guide to game table
Bring this Picasso Triggerfish home
See which ready-to-play decks feature this SeaPal. Try one in the simulator before you buy, or explore each full deck list.
- 2 copies
Ready-to-play deck
Blue Water Deck
Includes 2 cards featuring Picasso Triggerfish.
- 1 copy
Ready-to-play deck
Disruption Deck
Includes 1 card featuring Picasso Triggerfish.
Quick dive
Creature passport
- Home
- Shallow Indo-Pacific reef flats, sandy lagoons, and protected coral areas.
- Favorite foods
- Algae plus crabs, snails, worms, urchins, and other bottom animals.
- Size check
- Up to 12 in (30 cm) — about a school ruler
Tell-your-friends facts
Four wonderfully wild things
- 1
The locking spine helps prevent predators from pulling it from a crevice.
- 2
It may sleep on its side tucked into the reef.
- 3
An alarmed fish can make a whirring sound.
- 4
Females guard patches of eggs laid on the seafloor.
Ocean superpower
Built to be amazing
A second dorsal spine locks the first upright like a doorstop.
Junior scientist tip
What should I look for?
Look for diagonal face stripes and a black patch on the belly.
Grown-up research links
We used trusted science organizations to check this profile.