Marine Invertebrates

Small Creatures. Big Impact. Incredible Variety.

Explore our selection of live marine invertebrates for saltwater and reef aquariums. From hardworking cleanup crew members to colorful and fascinating showpiece species, invertebrates bring diversity, movement, and function to your aquarium.

Our collection may include shrimp, crabs, hermit crabs, snails, starfish, urchins, clams, scallops, and other marine invertebrates. Whether you're looking for natural algae control, help maintaining your reef, or simply a unique new inhabitant, there's an invert for nearly every saltwater system.

Care requirements can vary significantly between species. Please review each individual listing for information regarding tank size, diet, reef compatibility, temperament, water parameters, and special care requirements before purchasing.

Live Invertebrate Shipping

Live invertebrates ship Monday, Tuesday, and Wednesday via Priority Overnight in insulated, temperature-controlled packaging.

Shipping may be delayed due to severe weather, extreme temperatures, holidays, carrier disruptions, or other conditions that could compromise animal safety.

Livestock shipping: $59.99 per applicable shipment; no free-shipping threshold. Generally ships Monday–Wednesday by overnight service, after the preparation period stated on each listing. Contiguous 48 United States and Washington, DC only. DOA claims and required photographs must be submitted within 12 hours of carrier-confirmed delivery. Original shipping is nonrefundable; replacement shipping is extra. See the Shipping & Live Arrival Policy.