Empty Fancy Reef Hermit Crab Shell - Large. Quantity (1). Great for reef hermit crabs to move into, when they have outgrown their old shells. Size range is approximately .1" inner shell opening diameter. Perfect for Large Species of Saltwater Reef Aquarium Hermit Crabs...

The OCReef Wireless Remote PAR38 RGB is perfect for keeping corals in nano aquariums, and the array of mounting fixture options available from any local hardware store makes this form of lighting extremely versatile! Makes Coral Colors Pop! These PAR38 are also perfect for freshwater planted biotope aquariums or dedicated aquariums, for example a 30 gallon Seahorse Aquarium.

Ulva Sea Lettuce Macro-Algae, being phosphate nutrient absorbent, is an excellent choice for refugiums. This highly nutritional leafy green algae is readily accepted by herbivorous fish like tangs, as well as inverts like nudibranch and sea-hares...

These 72 Watt CREE™ LED Light Fixtures give a great light spread and penetration from 24 inches up to 48 inches of water depth. Are perfect for large to nano sized aquariums. The unit measures 16 inches in Length x 6 inches in Width x 2 inches in Height...

Red Mangrove Seedling, natural filter - BUY ONE, GET ONE FREE! - Aqua-Cultured (Rhizophora mangle) - A Natural Fish Aquarium Filter Plant. In order to grow, mangroves absorb nutrients from the water, this helps lower nitrates and phosphates in the aquarium...