Invertebrates

Information about keeping corals, anemones, shrimp and other invertebrates in saltwater aquariums. Articles cover care requirements, compatibility and common challenges with these creatures.

Anemones in Your Aquarium

Anemones can transform your marine tank but need careful selection and care to survive, so here's what to look for when buying a healthy one.

Coral

Keeping live coral healthy in a saltwater aquarium requires understanding the right conditions and choosing compatible species for your tank.

Hermit Crabs in the Aquarium Environment

Hermit crabs make intelligent, playful aquarium pets that change shells as they grow and help keep your tank clean.

Keeping Shrimp in the Aquarium

Shrimp need stable water conditions and low light to thrive in your aquarium, plus they'll eat algae and leftover food while being fascinating to watch.

Keeping Starfish

Starfish need stable water conditions and careful acclimation to thrive in a marine aquarium, but experienced keepers can keep them successfully.

Sea Urchins

Sea urchins eat algae and keep your aquarium clean, but they need stable water conditions and careful handling.