New

Coral Reef

Boxfish / Cowfish

More details

Boxfish (Ostracion meleagris)

Pro

Pro

Description

A slow-moving, armored saltwater fish with a charming boxy shape and spotted body pattern. Its unique form and quirky behavior make it a standout in peaceful marine tanks—but it requires careful tankmate selection and water quality monitoring.

Difficulty Level

Intermediate Care

Region

Boxfish (Ostracion meleagris)

Core Details

Highlights

Care Level

0

/ 10

Sensitive to poor water quality and aggressive tank mates. Can release toxins when stressed, making species selection critical.

Environment Impact

0

/ 10

Commonly wild-caught but occasionally captive-bred. Careful sourcing reduces reef impact. Avoid impulse purchases due to specialized needs.

Origin
Native to the Indo-Pacific, including reefs around Hawaii, the Philippines, and eastern Australia. Inhabits lagoons and coral reef slopes.

Visual & Functional Appeal
Has a rigid, box-like body encased in bony plates and covered in small white or blue spots. Coloration differs between males and females, with males displaying iridescent blue bodies and females showing darker brown with white dots.

Purpose
Serves as a gentle, slow-moving presence in marine tanks. Provides contrast in movement and shape among faster, streamlined fish.

Importance
Boxfish are peaceful and unique but require informed aquarists. Their toxin-releasing defense mechanism means they must be kept stress-free and away from fin-nippers.

Included Resources
Needs excellent filtration and stable water conditions. Gentle flow preferred. Tank should have rockwork caves and low competition. Protein skimmer and UV sterilizer recommended. Avoid overstocking.

Best Use Cases
Ideal for peaceful reef or FOWLR tanks without aggressive or curious tank mates. Suitable for aquarists seeking an unusual, personality-driven marine species.

Conservation Context
Wild populations face minor harvesting pressure but are not threatened. Still, responsible sourcing is key. Captive breeding is rare but growing in marine aquaculture.

Ideal Aquatic Animals
• Peaceful gobies and blennies
• Seahorses or pipefish (with care)
• Clownfish (non-aggressive types)
• Avoid: triggers, puffers, fast wrasses, or large angels

Region (A)
• Latitude: 19.8968° N
• Longitude: 155.5828° W
(Hawaii – coastal reef systems)

Region (B)
• Latitude: -6.2088° S
• Longitude: 106.8456° E
(Indonesia – reef shallows around Java)

How Many Can I Keep?

Get smart stocking suggestions based on your tank size.

e.g. 75 gallons (280 L)

Boxfish (Ostracion meleagris)

Core Details

Highlights

Care Level

0

/ 10

Sensitive to poor water quality and aggressive tank mates. Can release toxins when stressed, making species selection critical.

Environment Impact

0

/ 10

Commonly wild-caught but occasionally captive-bred. Careful sourcing reduces reef impact. Avoid impulse purchases due to specialized needs.

Origin
Native to the Indo-Pacific, including reefs around Hawaii, the Philippines, and eastern Australia. Inhabits lagoons and coral reef slopes.

Visual & Functional Appeal
Has a rigid, box-like body encased in bony plates and covered in small white or blue spots. Coloration differs between males and females, with males displaying iridescent blue bodies and females showing darker brown with white dots.

Purpose
Serves as a gentle, slow-moving presence in marine tanks. Provides contrast in movement and shape among faster, streamlined fish.

Importance
Boxfish are peaceful and unique but require informed aquarists. Their toxin-releasing defense mechanism means they must be kept stress-free and away from fin-nippers.

Included Resources
Needs excellent filtration and stable water conditions. Gentle flow preferred. Tank should have rockwork caves and low competition. Protein skimmer and UV sterilizer recommended. Avoid overstocking.

Best Use Cases
Ideal for peaceful reef or FOWLR tanks without aggressive or curious tank mates. Suitable for aquarists seeking an unusual, personality-driven marine species.

Conservation Context
Wild populations face minor harvesting pressure but are not threatened. Still, responsible sourcing is key. Captive breeding is rare but growing in marine aquaculture.

Ideal Aquatic Animals
• Peaceful gobies and blennies
• Seahorses or pipefish (with care)
• Clownfish (non-aggressive types)
• Avoid: triggers, puffers, fast wrasses, or large angels

Region (A)
• Latitude: 19.8968° N
• Longitude: 155.5828° W
(Hawaii – coastal reef systems)

Region (B)
• Latitude: -6.2088° S
• Longitude: 106.8456° E
(Indonesia – reef shallows around Java)

How Many Can I Keep?

Get smart stocking suggestions based on your tank size.

e.g. 75 gallons (280 L)

Boxfish (Ostracion meleagris)

Core Details

Highlights

Care Level

0

/ 10

Sensitive to poor water quality and aggressive tank mates. Can release toxins when stressed, making species selection critical.

Environment Impact

0

/ 10

Commonly wild-caught but occasionally captive-bred. Careful sourcing reduces reef impact. Avoid impulse purchases due to specialized needs.

Origin
Native to the Indo-Pacific, including reefs around Hawaii, the Philippines, and eastern Australia. Inhabits lagoons and coral reef slopes.

Visual & Functional Appeal
Has a rigid, box-like body encased in bony plates and covered in small white or blue spots. Coloration differs between males and females, with males displaying iridescent blue bodies and females showing darker brown with white dots.

Purpose
Serves as a gentle, slow-moving presence in marine tanks. Provides contrast in movement and shape among faster, streamlined fish.

Importance
Boxfish are peaceful and unique but require informed aquarists. Their toxin-releasing defense mechanism means they must be kept stress-free and away from fin-nippers.

Included Resources
Needs excellent filtration and stable water conditions. Gentle flow preferred. Tank should have rockwork caves and low competition. Protein skimmer and UV sterilizer recommended. Avoid overstocking.

Best Use Cases
Ideal for peaceful reef or FOWLR tanks without aggressive or curious tank mates. Suitable for aquarists seeking an unusual, personality-driven marine species.

Conservation Context
Wild populations face minor harvesting pressure but are not threatened. Still, responsible sourcing is key. Captive breeding is rare but growing in marine aquaculture.

Ideal Aquatic Animals
• Peaceful gobies and blennies
• Seahorses or pipefish (with care)
• Clownfish (non-aggressive types)
• Avoid: triggers, puffers, fast wrasses, or large angels

Region (A)
• Latitude: 19.8968° N
• Longitude: 155.5828° W
(Hawaii – coastal reef systems)

Region (B)
• Latitude: -6.2088° S
• Longitude: 106.8456° E
(Indonesia – reef shallows around Java)

How Many Can I Keep?

Get smart stocking suggestions based on your tank size.

e.g. 75 gallons (280 L)

Boxfish (Ostracion meleagris)

Region

Drag and orbit around the species’ natural range.

Drag to rotate and discover where this species originates in the world.

Drag to rotate and discover where this species originates in the world.

People also like…

![Zebra Goby (Gobiosoma oceanops)](A vibrant image of a Zebra Goby showcasing its blue and white stripes, swimming among coral in a saltwater aquarium.)

Zebra Goby (Gobiosoma oceanops)

Zebra Goby (Gobiosoma oceanops)
Zebra Goby (Gobiosoma oceanops)
A small, realistic fish figurine with a sleek black body and striking yellow stripe, showcasing intricate fin and eye details, is displayed against a plain white background, emphasizing its vibrant contrast and lifelike design.

Yellow Neon Goby (Elacatinus figaro)

Yellow Neon Goby (Elacatinus figaro)
Yellow Neon Goby (Elacatinus figaro)
A close-up image of a vibrant neon tetra fish with iridescent blue and pink scales, transparent fins, and a black horizontal stripe running along its side, set against a plain white background.

Neon Goby (Elacatinus oceanops)

Neon Goby (Elacatinus oceanops)
Neon Goby (Elacatinus oceanops)
 A vibrant image showcasing the Orange Neon Goby (Elacatinus figaro) with its striking orange and blue coloration, set against a colorful coral reef background.

Orange Neon Goby (Elacatinus figaro)

Orange Neon Goby (Elacatinus figaro)
Orange Neon Goby (Elacatinus figaro)
A vibrant yellow butterflyfish with distinctive black markings and elongated snout swims gracefully against a clean white background.

Yellownose Butterflyfish (Chaetodon flavirostris)

Yellownose Butterflyfish (Chaetodon flavirostris)
Yellownose Butterflyfish (Chaetodon flavirostris)
A vibrant, realistic-looking plastic model of an orange and purple shrimp features detailed segmented legs and antennae against a plain white background.

Commensal Shrimp (Family Palaemonidae)

Commensal Shrimp (Family Palaemonidae)
Commensal Shrimp (Family Palaemonidae)
A vibrant red shrimp with intricate white patterns on its shell stands against a plain background, showcasing its long antennae and detailed features.

Hingebeak Shrimp (Rhynchocinetes durbanensis / uritai)

Hingebeak Shrimp (Rhynchocinetes durbanensis / uritai)
Hingebeak Shrimp (Rhynchocinetes durbanensis / uritai)
“Tiger Dwarf Goby (Eviota tigris) swimming among coral with vibrant tiger-like stripes."

Tiger Dwarf Goby (Eviota tigris)

Tiger Dwarf Goby (Eviota tigris)
Tiger Dwarf Goby (Eviota tigris)
A brightly colored teal fish with vivid orange patterns and large fins is set against a plain white background.

Green Clown Goby (Gobiodon histrio)

Green Clown Goby (Gobiodon histrio)
Green Clown Goby (Gobiodon histrio)