Saltwater Invertebrates are the ultimate in style and elegance for aquariums of any size. Diverse, interesting, colorful, and unusual, marine invertebrates make great additions to your home saltwater aquarium. Our selection of marine plants will help improve the water quality of your marine aquarium while increasing biodiversity to your underwater environment. They are found in all parts of the world and are well known for their scavenging skills as well as their filter feeding and "cleaning" abilities. While a Starfish or Sea Urchin may be easily recognized, Invertebrates include some very odd members, such as a Sea Apple or Nudibranch.