Horn Shark

Heterodontus francisci

(1)

Share Your Photos

Add your photos to help others

Suggested Tank

500+ gallons

Max Size

48 inches

Difficulty

Expert

Temperament

Semi-Aggressive

Description

A stout, bottom-dwelling bullhead shark with a blunt pig-like snout, ridged brows, and a tan-to-brown body covered in small dark spots over a pale belly, with a stiff spine at the front of each dorsal fin. Nocturnal and slow-moving, it crawls over rockwork on muscular pectoral fins and crushes hard-shelled prey with molar-like rear teeth, so it will eat shrimp, crabs, urchins and snails and may bulldoze corals. It needs a very large, cool-water (64-75°F), copper-free system with a deep fine sand bed, open swimming floor space, and stable caves for daytime resting.

Reef Safe

No

Environment

Horn Sharks prefer cooler water temperatures between 50 and 70 degrees Fahrenheit. They need a lot of space and plenty of hiding spots in the tank.

Behavior

Horn Sharks are nocturnal and spend most of the day hiding in crevices. They are solitary creatures and can be territorial. They are not aggressive unless provoked.

Information might not be complete or accurate. Help the community by suggesting corrections.

Owner Reviews

kingkai371

Kai

@kingkai371

2 years ago
Overall Rating:
Would Buy Again: 👍 Yes
What You Feed: Thawed diced jumbo shrimp, raw salmon/mackerel cut into bite sized pieces etc

Can be curious and even be trained to be hand fed, but definitely for the more experienced Aquarist. They prefer a little bit cooler temps but are definitely interesting and fun to watch/interact with! Only downside is you can’t keep them with corals or invertebrates or many small fish species as they will munch on the invertebrates and fish and tend to disturb areas where corals might be.

Reef Safe: No
Visibility: Moderate Visibility
Temperament: Semi-aggressive
Difficulty: Expert
Min Tank Size: 300 Gallons

For Sale

No active listings found

Write a Review

Horn Shark

Heterodontus francisci

Rating is required
Please select whether you would buy again
Review is required

Suggest an Edit

©ReefBay 2026
|
Developed by Billy Voitik

Join The Community

Create an account to contribute to the community

Or continue with
Sign in with Apple
Or continue with
Sign in with Apple

Prefer our mobile app?

QR Code

Scan to download the app

Download ReefBay

Scan the QR code with your phone to download the app

Download ReefBay QR Code

Available on iOS and Android