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Sea Urchin

39 products
Longspine Urchin, Black
(Diadema setosum)
Starting at $24.99
Urchin, also known as Long-spined Sea Urchin, has a body which is predominately black with a red eyespot in the center. The spines on these urchins are long, thin and completely black. They are a very delicate looking urchin, which are actually very capable of protecting itself. These urchins are…
Pincushion Urchin, Hairy
(Tripneustes gratilla)
Starting at $21.99
The Hairy Pincushion Urchin is also known as the Sea Egg, and the Priest-hat Urchin. It has five or ten double rows of white and red spines separated by spaces of red, purple, white or black. To camouflage itself, it often covers itself with rocks, sponges, shells, or algae. In addition to…
Blue Tuxedo Urchin
(Mespilia globulus)
Starting at $21.99
The Blue Tuxedo Urchin, also known as the Sphere Urchin or Globe Urchin, has five to ten broad-colored bands usually blue or black, with red, brown, or dark spines. This very striking combination, gives it the "formal" look and thus the name "Tuxedo Urchin."During the day, it will hide among the…
Pincushion Urchin
(Lytechinus variegatus)
Starting at $9.99
The Pincushion Urchin has an oval to round body covered with hundreds of uniform spines. Its color can range from red to purple to white and blue.It requires ample hiding places and sufficient room in which to forage in the home aquarium. It generally hides in caves during the day, though it may…
Pencil Urchin
(Eucidaris tribuloides)
Starting at $9.99
…invertebrates like sea squirts or sponges. It can be destructive to corals. It requires an aquarium with multiple hiding places and live rock on which it can graze. The rock formations should be sturdy, since the Urchin could dislodge rocks as it moves around the tank. The Pencil Urchin is very…
Pincushion Sea Urchin, Aquacultured ORA®
(Lytechinus variegatus - Aquacultured ORA)
Starting at $19.99
…Pincushion Sea Urchin will tolerate others of its own kind. Maintain ideal water quality as the Variegated Pincushion Sea Urchin will not tolerate high nitrate levels. Poor water quality will cause it to lose its spines. Like many invertebrates, the Variegated Pincushion Sea Urchin is sensitive…
Cowrie, Tiger
(Cypraea tigris)
Starting at $36.99
…some algae and scavenge for scraps, but as an adult, it will eat some anemones, sponges, and soft corals, and is best housed with starfish, sea urchins, and tubeworms in the reef aquarium. Do not house it with Condylactis sp. It needs low nitrate levels and will not tolerate copper-based…
Harlequin Shrimp
(Hymenocera elegans)
Starting at $29.99
…and maintained to ensure proper molting.It is very particular about what it will eat, dining only on echinoderms, primarily starfish, and a few urchin species. It will eat starfish (Linckia, Fromia sp.) by starting at the tip of the arm and working its way to the central disc. The starfish may shed…
Yellowstriped Cardinalfish
(Ostorhinchus cyanosoma)
Starting at $17.99
…larger aquarium with a cave and peaceful tank mates is suitable for this slow and methodical swimmer. It tends to hide in sea grass or other plants, or may use long spined urchins for camouflage. If a larger aquarium is available, it will handle a small group of this species. As a group, they will…
Blue & Pink Sea Star
(Astropecten sp.)
Starting at $19.99
…food. Like other starfish, this member of the Astropectinidae family also consumes small invertebrates, including shrimp, urchins, mollusks, bivalves, or other small sea stars. As such, they should be actively fed with a varied diet that mimics their natural food sources, especially in…
Pencil Urchin, Red Slate
(Heterocentrotus mammilatus)
Starting at $19.99
…Slate Pencil Urchin, also known as Slate Pencil Urchin, has a reddish-tan body with sparse, long, blunt solid spines that taper at the tips and radiate out from the body in all directions at lengths of up to five inches. In addition to its spines looking like pencils, this sea urchin is also called…
Sea Apple, Australian
(Pseudocolochirus axiologus)
Starting at $89.99
The body of the Sea Apple, or Australian Sea Apple, is light to dark blue, and it has red feet. The tentacles are violet, blue, red, and have white tips. This a beautiful species that will add a new dimension of color to the reef aquarium.It prefers an established reef aquarium with room to move…
Hikari Mega-Marine Algae Frozen Food
Starting at $3.99
…parasites, or foul odors. Packed in pure water and available in convenient "no touch" cube packs. Ingredients: Sea algae, sea urchin, plankton, krill, shrimp, squid, sea worms, spirulina, carrot, algae extract, cod liver oil, Vitamin B12, Vitamin D3, Vitamin E supplements, beta carotene,…
Sand Sifting Sea Star
(Astropecten polycanthus)
Starting at $17.99
…of detritus and left over food. Like other starfish, the Sand Sifting Sea Star will also consume small invertebrates, including shrimp, urchins, mollusks, bivalves, or other small sea stars. As such, the Sand Sifting Sea Star should be actively fed a varied diet consisting of natural food sources,…
Clown Filefish
(Cantherhines dumerili)
Starting at $189.99
…for a 100-gallon or larger aquarium with plenty of live rock and no invertebrates. These filefish eat branching SPS corals, algae, sponges, sea urchins and mollusks in the wild. They are not suitable for a reef aquarium, but make a great addition to a fish only aquarium. The diet should include…