Octopus joubini

Datasheet

General Description

The Atlantic Pygmy Octopus, also known as the Dwarf Octopus, is a captivating cephalopod species covered with chromatophores allowing it to swiftly change colors to blend in with its environment. With a rectangular pupil and eight tentacles, it typically emerges at dusk to hunt small invertebrates and sleeping fish. Its arms make up around 70% of its length, with the mantle composing the remaining portion.

Aquarium Suitability

The Atlantic Pygmy Octopus is considered suitable for expert aquarists due to its specific care requirements and sensitivity. It thrives in an aquarium with ample live rock, hiding spots, and a spacious environment to roam. This species prefers caves, medium to coarse substrate, and low lighting levels, ideally provided by dim actinic lighting. Anchoring rocks in the tank is advisable to prevent them from toppling over, and securing all openings tightly is crucial to prevent escape.

Demands, Care, and Hardiness

This species demands meticulous care, thriving best in a species-only aquarium with live rock for water stability. It is sensitive to high nitrates, phosphates, and copper-based medications. To prevent stress, approach the Atlantic Pygmy Octopus slowly to avoid triggering ink release, which could lead to the need for a significant water change.

Reef Suitability

The Atlantic Pygmy Octopus is not reef-compatible due to its specific habitat requirements and potential to disturb reef structures in the aquarium.

Aquarium Setup

Providing a tank with at least 113 liters is crucial for this species, along with plenty of live rock, caves, and open space for movement. It is essential to maintain stable water conditions with a pH ranging from 8.2 to 8.4, a specific gravity between 1.023 and 1.025, and a carbonate hardness of 8-12 dKH. Supplementing the tank with iodine and trace elements is recommended for the well-being of the Atlantic Pygmy Octopus.

Behaviour

Known for its peaceful temperament, the Atlantic Pygmy Octopus exhibits curiosity and intelligence in its interactions within the aquarium.

Feeding and Diet

This carnivorous species feeds on small live feeder shrimp, freshwater ghost shrimp, spirulina-based dry foods, plankton, and cyclops to enhance its nutritional intake.

Dimorphism

Information on dimorphism and captive reproduction of the Atlantic Pygmy Octopus is not available in the provided data.

Habitat and Distribution

The Atlantic Pygmy Octopus, scientifically known as Octopus joubini, is native to the western Atlantic Ocean. It inhabits shallow waters with suitable hiding spots and ample prey sources for sustenance.