Mithraculus sculptus is a small crab with a carapace longer than it is wide and large chelae (claws). The carapace is flat, shiny and green, finely sculpted, with whitish material adhering to the projections. The chelae are also...

Like starfish, brittle stars are echinoderms but are in the class Ophiuroidea rather than Asteroidea. Brittle stars have five long, skinny arms and a central disk containing a calcium carbonate skeleton and all of their internal organs. As long as...

  The Pithos crab is a small crab species with a bulbous body and cupped claws that is native to the Caribbean, Gulf of Mexico, and Atlantic: Appearance Pithos crabs have a molted brown, tan, or...

Average 2"+ in size.   The strawberry conch, also known as the tiger conch, is a large, peaceful, and hardy snail that is a good addition to a saltwater aquarium:      Appearance Strawberry conchs...

The sexy shrimp, also known as Thor amboinensis, is a small shrimp with a distinctive appearance and unusual movements:      Size: Sexy shrimp are small, growing to about 1.5–13...

The electric blue hermit crab (Calcinus elegans) is a rare, tropical crab with striking blue and orange colors:      Appearance The electric blue hermit crab has bright blue legs with black...

Average size of 2" - 5"+  Horseshoe crabs are unique-looking arthropods with a hard exoskeleton, a long tail, and a horseshoe-shaped body:      Appearance Horseshoe crabs have a dark brown or olive...

  The long-spined sea urchin, also known as the black sea urchin, is a marine invertebrate with a hard shell, long spines, and a vital role in reef ecosystems:      Appearance The...

  Pom pom crabs are small, brightly colored crabs that are known for carrying anemones in their claws:      Size: Pom pom crabs are about 0.5-1 inch wide on average...

Orchid Dottybacks are found only in the Red Sea. They’re observed in colonies near vertical walls or ledges, where they dart out to grab a meal from the passing zooplankton, then rush back. In the wild they are found at moderate to deep depths, and...

The Pajama Cardinal is one of the most popular marine aquarium fish, not to be confused with the similar but less-attractive Orbic Cardinal (Sphaeramia orbicularis). ORA is the first hatchery to successfully commercially breed this colorful Cardinal...

The coral banded shrimp (Stenopus hispidus) is a saltwater shrimp with a striking red and white color pattern, long antennae, and a prickly body texture:      Size: Can grow up to 2.4 inches...

  *WARNING CHOCOLATE CHIP STARFISH ARE NOT REEF SAFE*   The chocolate chip starfish is a sea star with a number of distinctive features, including:      Appearance Chocolate chip starfish are named...

Appearance Arrow crabs have a medium golden brown body with stripes of brown, black, yellow, or gold. They have 10 legs, eight for walking and two pincers, and their legs can be more than three times the length of their body. Their...

  Harlequin shrimp are popular with aquarists, but they require a specialized diet and special care:      Diet They need a steady supply of live starfish, such as Asterias rubens for adults and...