Diodon holocanthus

Datasheet

General Description

The Longspined porcupinefish (Diodon holocanthus) belongs to the family Diodontidae and is commonly known for its resemblance to pufferfish. These fish are characterized by their unique swimming style, spiky appearance, and ability to inflate themselves. In nature, they are also referred to as blowfish due to their habit of blowing water into the sand to uncover food. They are known to possess toxin-releasing skin, which can be harmful to other aquatic life in stressful situations.

Aquarium Suitability

Longspined porcupinefish are considered suitable for aquariums with proper care. They are hardy individuals that can thrive in captivity for many years under the right conditions. However, they are not reef-safe and may nibble on the fins of other fish. It is recommended to keep them with their own species and away from aggressive tank mates.

Demands, Care and Hardiness

These fish have average hardiness and require attentive care. Special consideration should be taken during handling and transport, as they can release toxins when stressed. Longspined porcupinefish have specific dietary needs, relying on food that grinds their teeth as they continuously grow. Clams and other larger crustaceans are suitable options to prevent dental issues. Parasite infections are common, so quarantine measures are essential.

Reef Suitability

Longspined porcupinefish are considered reef-safe with caution. They may exhibit aggressive behavior towards other species and should be monitored closely in a reef environment.

Aquarium Setup

To accommodate Longspined porcupinefish, a tank of at least 1500 liters is recommended. The water conditions should have a pH range of 8.1-8.4, a temperature of 22.2-25.6 degrees Celsius, a specific gravity of 1.020-1.025, and a carbonate hardness (KH) of 8-12. Care should be taken to secure electrical equipment, as these fish are known to blow water out of the tank while feeding.

Behaviour

Longspined porcupinefish are known for their fun and interesting personalities. They should be provided with ample space to swim and explore within the aquarium to exhibit their natural behaviors.

Feeding and Diet

Their diet should include larger crustaceans, small invertebrates, and small crustaceans like krill and mysis shrimp. Foods that help prevent overgrowth of teeth, such as clams, should be included to maintain the fish's dental health.

Habitat and Distribution

Longspined porcupinefish are found in various locations, including the East and West Indian Ocean, Australia, Japan, the Red Sea, the Gulf of Mexico, Indonesia, New Zealand, and the Central/West Pacific. Their natural habitat includes sandy areas where they blow water to uncover food, showcasing their feeding behavior.