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Octopus (Octopus sp.)

Find Octopus across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified invertebrate listings before you buy.

Octopus
Photo: (c) Yinan Li, some rights reserved (CC BY-NC), uploaded by Yinan Li · cc-by-nc
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Where to buy Octopus

ReefDock searches the following reef retailers for this invertebrate. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Octopus

Octopuses have soft, boneless bodies with eight arms lined with suckers. They are highly variable in coloration, ranging from browns and reds to whites and grays, with the ability to rapidly change color and texture for camouflage and communication.

Key facts

Category
Octopus
Care Level
Expert
Notes
Photo needed: new livestock catalog expansion entry added on 2026-04-25. Specialty only. Requires escape-proof species tank, excellent filtration, and expert care. Photo candidate added via SearchAPI on 2026-04-25 from inaturalist.org. Verify species match and usage rights before marking final.
Compatibility
Octopuses are solitary and highly predatory. They will consume small fish, crustaceans, and invertebrates. Not suitable for community tanks.
Appearance Description
Octopuses have soft, boneless bodies with eight arms lined with suckers. They are highly variable in coloration, ranging from browns and reds to whites and grays, with the ability to rapidly change color and texture for camouflage and communication.
Diet Details
Carnivorous; feed crabs, shrimp, and small fish. 2–3 times per week. Live or frozen prey preferred.
Min tank size
100 gallons
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.024-1.026
Family
Octopodidae
Max Size
36
Type
Predatory
Origin
Octopuses are found in tropical and temperate oceans worldwide, from shallow coral reefs to deep sea environments across the Indo-Pacific, Atlantic, and Mediterranean regions.

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell invertebrates directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current invertebrates listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible invertebrate listings — so you can see the conditions a invertebrate was raised in before you buy. Log this invertebrate on Reef Trak.

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