Cephalopods: Live Aquarium Octopus Species and Cuttlefish
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Aquarium Octopus and Cuttlefish

Octopus and Cuttlefish have several tricks for blending in with their undersea surroundings: they can change color, pattern and even the shape of their skin. Both must be housed alone without any other marine species because eventually they will both devour their tank mates. The best way to keep an octopus or Cuttlefish is a tank of adequate size or better, lots of live rock in the tank (a pound per gallon), a one-inch sand bed, a wet-dry filter and sump, protein skimmer, powerhead for extra circulation, and a simple fluorescent light. No fancy equipment is needed-no metal halides (too much light), no UV filter, no wavemakers or other devices that a reef tank might require. Tight lids and all openings taped over are a must because they are escape masters.

Common Atlantic Octopus
Octopus sp.
Picture of Flame Scallop


Description: Octopus are highly intelligent, by far the most intelligent known invertebrates, and are able to learn how to distinguish the difference between colors and shapes. More impressive is that they can remember the shapes and colors and their meanings for up to two years. An octopus can also learn how to unscrew the lid of a jar with its arms, and the octopus called Einstein at the British Blue Reef Aquarium could open a tin within seconds with two arms, opening it even faster if it was filled with food. Octopus have the ability to camouflage their body color depending on their environment and mood. They can orchestrate their pliable body's to fit into any small area. All openings in the aquarium must be sealed at all times. They are very intelligent predators, using their small beaked mouth to crush and eat small crustaceans.

Diet and Feeding: 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.

Reef Compatibility: Excellent will not harm inverts or corals

Level of Care: Advanced or Expert Aquarist Only
Not Guaranteed Beyond Live Arrival


Acclimaton Time: 4+ hours



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




$64.99 each




Electric Flame Scallop
Lima Sp.
Picture of Electric Flame Scallop

Description: The Electric Flame Scallop, inhabits the waters of the Indo-Pacific, ranges in size from 1 inch to 3 inches and is instantly recognizable by its soft parts being a flame red color, with several bright red tentacles protruding from the open valves shell. What makes this Bivalve even more fascinating is that it seems to create bluish white electricity which can be seen shooting across the mantel like lightning bolts quite visibly in the dark. While the purpose of the Electricity generated by this species is unknown you can see the flicker of bluish electricity bolts flowing through the scallop's filaments.

The electricity (which is actually a form of bioluminescence) is not known to be harmful to other sea life, and especially since the electric flame scallop is a filter feeder and feeds off of microscopic phytoplankton and bacterioplankton (omnivorous) it is curious why it possesses such a brilliant ability. Marine Biologists answer this question by suggesting that the light generated by the electric scallop attracts plankton to its filament like moths to a flame, then the tentacles help it feed from its fixed location.

Often the Electric Flame Scallop is confused with its parent species the Flame Scallop or Lima Scabra which is also similar in appearance, with a red fleshy mantle covered with tentacles, except for the absence of the strip of bio-luminescent tissue on its mantle that sends a flash of color back and forth over the mantle.


Diet and Feeding: Because flame scallops have no photosynthetic properties, the flame scallops eat only phytoplankton filtered from the ocean water. During the consumption process, flame scallops sift and sort through the phytoplankton with their gills to determine what is appropriate for ingestion. For foods we recommend Two Little Fishes Marine Snow, AlgaGen PhycoPureT Reef Blend, AlgaGen Rotifers and Seachem Reef Phytoplankton.

Reef Compatibility: Excellent will not harm inverts or corals

Level of Care: Difficult because of the need for multiple feedings per day

Approximate Purchase Size: 2" to 3"




$19.99 each
Pack of 3 $57.99



Thorny Oyster
Spondyllus americanus
Picture of Thorny Oyster


Description: The Thorny Oyster is a beautiful addition to a reef aquarium. They can be found from 3 to 6 inches in size, are totally reef safe and will stay where placed in the aquarium. Despite the similar common name, the thorny oyster mollusc is more closely related to the scallop. Like scallops and file clams, they have a well developed middle mantle that carries sensory tentacles with multiple eyes around the shell edges. A unique clam found in the Caribbean Ocean are seen at depths of around 50 to 100 feet. With numerous spines which can grow up to 2 inches in length. Thorny Oysters come in a variety of colors (white, yellow, red and purple) which normally depends on the encrusting sponges and other marine life surrounding it.

Thorny Oyster are filter feeders which means that they have to be fed multiple times a day with planktonic foods. Even though they are in the scallop and clam family, they don't move around like flame scallops and stay at the selected spot. They like strong currents but are very sensitive to changes in salinity which requires a very slow drip acclimation. Thorny Oysters like lower light levels because of the depth in which they have been found. If all the conditions are right, they cement themselves to a rock and they can grow up to approximately 6 inches.


Diet and Feeding: Because flame scallops have no photosynthetic properties, the flame scallops eat only phytoplankton filtered from the ocean water. During the consumption process, flame scallops sift and sort through the phytoplankton with their gills to determine what is appropriate for ingestion. For foods we recommend Two Little Fishes Marine Snow, AlgaGen PhycoPureT Reef Blend,and Seachem Reef Phytoplankton. Provide calcium and alkalinity for best health.

Reef Compatibility: Excellent will not harm inverts or corals

Level of Care: Difficult because of the need for multiple feedings per day

Approximate Purchase Size: Medium 3" to 4" Large 4" to 5" XLarge 5" to 6"




Medium $59.99
Large $69.99 XLarge $84.99



Copyright 2018 Aquarium Creations Online. While Aquarium Creations does its best to make an accurate representation of marine life on our website there is no guarantee that the actual marine life delivered will match the colors seen on your computer. Often the color reproduction on a computer screen or mobil device may not be produce the correct colors.