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Horn Shark

Horn Shark

Heterodontus francisci

The Horn Shark is a cold-water species (60-70F) from the Pacific coast, with a broad head, prominent brow ridges, and distinctive dorsal fin spines. It is nocturnal and spends most of the day wedged into rock crevices. Requires a large, cool-water FOWLR system of 200+ gallons — NOT compatible with tropical reef tanks due to temperature requirements. Crushes and eats sea urchins, crabs, and shrimp with its powerful jaws.

TemperamentSemi-aggressive
Max Size48"
Care LevelDifficult
CategoryShark

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Compatibility Chart for Horn Shark

See how Horn Shark gets along with every other species in our database.

Compatible (77)

Powder Blue Tang Compatible No known issues between these species Kole Tang Compatible No known issues between these species Naso Tang Compatible No known issues between these species True Percula Clownfish Compatible No known issues between these species Maroon Clownfish Compatible No known issues between these species Clarkii Clownfish Compatible No known issues between these species Flame Angelfish Compatible No known issues between these species Coral Beauty Angelfish Compatible No known issues between these species French Angelfish Compatible No known issues between these species Six Line Wrasse Compatible No known issues between these species Fairy Wrasse Compatible No known issues between these species Melanurus Wrasse Compatible No known issues between these species Cleaner Wrasse Compatible No known issues between these species Yellowspotted Wrasse Compatible No known issues between these species Clown Goby Compatible No known issues between these species Yellow Watchman Goby Compatible No known issues between these species Mandarin Dragonet Compatible No known issues between these species Blue Devil Damselfish Compatible No known issues between these species Yellowtail Damselfish Compatible No known issues between these species Copperband Butterflyfish Compatible No known issues between these species Raccoon Butterflyfish Compatible No known issues between these species Longnose Butterflyfish Compatible No known issues between these species Flame Hawkfish Compatible No known issues between these species Longnose Hawkfish Compatible No known issues between these species Midas Blenny Compatible No known issues between these species Tailspot Blenny Compatible No known issues between these species Lawnmower Blenny Compatible No known issues between these species Bicolor Blenny Compatible No known issues between these species Royal Gramma Compatible No known issues between these species Banggai Cardinalfish Compatible No known issues between these species Pajama Cardinalfish Compatible No known issues between these species Purple Tang Compatible No known issues between these species Scopas Tang Compatible No known issues between these species Achilles Tang Compatible No known issues between these species Clown Tang Compatible No known issues between these species Sohal Tang Compatible No known issues between these species Convict Tang Compatible No known issues between these species Tomini Tang Compatible No known issues between these species Magnificent Foxface Compatible No known issues between these species One Spot Foxface Compatible No known issues between these species Masked Rabbitfish Compatible No known issues between these species Picasso Triggerfish Compatible No known issues between these species Clown Triggerfish Compatible No known issues between these species Bluechin Triggerfish Compatible No known issues between these species Undulate Triggerfish Compatible No known issues between these species Pinktail Triggerfish Compatible No known issues between these species Magnificent Anemone Compatible No known issues between these species Long Tentacle Anemone Compatible No known issues between these species Carpet Anemone Compatible No known issues between these species Sebae Anemone Compatible No known issues between these species Chicago Sunburst BTA Compatible No known issues between these species Rose Bubble Tip Anemone Compatible No known issues between these species Rainbow Bubble Tip Anemone Compatible No known issues between these species Colorado Sunburst BTA Compatible No known issues between these species Fire Shrimp Compatible No known issues between these species Peppermint Shrimp Compatible No known issues between these species Tiger Pistol Shrimp Compatible No known issues between these species Sexy Shrimp Compatible No known issues between these species Emerald Crab Compatible No known issues between these species Blue Leg Hermit Crab Compatible No known issues between these species Turbo Snail Compatible No known issues between these species Nassarius Snail Compatible No known issues between these species Red Fromia Starfish Compatible No known issues between these species Hammer Coral Compatible No known issues between these species Torch Coral Compatible No known issues between these species Frogspawn Coral Compatible No known issues between these species Zoanthids Compatible No known issues between these species Mushroom Coral Compatible No known issues between these species Rhodactis Mushroom Compatible No known issues between these species Ricordea Florida Compatible No known issues between these species Ricordea Yuma Compatible No known issues between these species Bounce Mushroom Compatible No known issues between these species Green Star Polyps Compatible No known issues between these species Pulsing Xenia Compatible No known issues between these species Montipora Compatible No known issues between these species Leather Coral Compatible No known issues between these species Duncan Coral Compatible No known issues between these species

Risky (3)

Brownbanded Bamboo Shark Risky Different temperature requirements Epaulette Shark Risky Different temperature requirements Coral Catshark Risky Horn shark is cold water; incompatible temps

Not Compatible (12)

Yellow Tang Not Compatible Horn shark needs 60-70F; tang needs 75-80F Blue Hippo Tang Not Compatible Incompatible temperatures Ocellaris Clownfish Not Compatible Completely different temperature requirements Emperor Angelfish Not Compatible Incompatible temperatures Firefish Goby Not Compatible Wrong temp; will eat them Green Chromis Not Compatible Wrong temp; will eat them Foxface Rabbitfish Not Compatible Incompatible temperatures Niger Triggerfish Not Compatible Incompatible temperatures Bubble Tip Anemone Not Compatible Wrong temperature entirely Skunk Cleaner Shrimp Not Compatible Wrong temp and will eat shrimp Tuxedo Urchin Not Compatible Horn shark specializes in crushing urchins Acropora Not Compatible Cold water shark; wrong temperature for corals

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