Atlantic Pygmy Octopus
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Atlantic Pygmy Octopus
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Atlantic Pygmy Octopus (Octopus joubini)
Additional locales and sizes may be available!

Quick Stats

Care Level Expert Only
Temperament Peaceful
Diet Carnivore
Reef Compatible No
Water Conditions 72-78° F, dKH 8-12, sg 1.023-1.025, pH 8.2-8.4
Max. Size 5½"
Origin Atlantic Ocean, Caribbean
Supplements Iodine, Trace Elements
Minimum Tank Size 30 gallons
Compatibility View Chart
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Overview

The Atlantic Pygmy Octopus is also known as the Dwarf Octopus, and is covered with chromatophores that allow it to change colors quickly to mimic its surroundings. Unlike most animals, the Octopus has a rectangular pupil. It usually comes out at dusk to feed on small invertebrates or small sleeping fish. It uses its eight tentacles to bring the catch to its beak-like mouth. Of its total length, the arms will represent about 70%, with the mantle comprising the rest.

The Octopus will do best in an aquarium if provided with plenty of live rock and ample hiding places and a large area in which to move. It prefers an aquarium with caves and medium to coarse substrate with low lighting levels. The ideal lighting for this aquarium is dim actinic lighting.

The Octopus can be surprisingly strong, so in the home aquarium, it is best to anchor the rocks, or even glue them together to keep the Octopus from toppling the rocks into the glass or onto itself. Cover all tank openings very well or it will try to escape. The Octopus is sensitive to high levels of nitrates and phosphates, as well as any copper-based medications. It its best to maintain the Atlantic Pygmy Octopus in a species only aquarium with some live rock to aid in water stability.

Always approach the Octopus slowly to avoid causing it to release its ink cloud in defense. In the aquarium, this release of ink will necessitate a large water change to avoid its death.

The Octopus can be fed small live feeder shrimp or freshwater ghost shrimp. Any live foods should be fed spirulina based dry foods, plankton, and cyclops to enhance their nutritional value.

Approximate Purchase Size: 1-1/2" to 4"

Please note: We guarantee that ALL aquaria species we offer will arrive alive and in good condition. However, because of the increased level of care required for this particular species, it has been designated as "Expert Only," and it is recommended that only the expert marine aquarist, zoo, or research institution purchase this species.

Customer Testimonials

Armen K Whitefish , MT
Ordered my pygmy off of the Diver's Den, and came in great shape! Small and active. I've had it for a week in my reef tank and have been feeding it ghost shrimp, although hermit crabs, snails, and emerald crabs occasionally become snacks. So far my skunk shrimp pair have been left untouched, luckily. Not a very active species, and rarely comes out of hiding even at night, but none the less an awesome animal!
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