A saltwater aquarium is not complete without saltwater invertebrates. The saltwater invertebrates you see listed for sale add naturalness and beauty that make an aquarium whole. Not only do invertebrates add natural qualities but they also help the cycle and maintenance as they would in their natural environment. Every saltwater Invertebrate has a specific role in the oceans worldwide. Some saltwater invertebrates assist in the breakdown of cyanobacteria that arise yearly in some aquatic environments, If it were not for these invertebrates these algae blooms can grow out of control. Likewise hobbyists depend on invertebrates to control nuisance bacteria or algae in the aquarium.