Long Spine Sea Urchins (Black), Diadema Setosum Size:Large There are also blue markings

There are also blue markings on the dorsal

Z-Complete is an inorganic system that is better complemented with our inorganic elements and supplemented with our organic nutrients

Algae Magnet High quality magnetic algae cleaner for glass aquariums

proper iodine supplementation is necessary to promote molting and growth

Long Spine Sea Urchins (Black), Diadema Setosum Size:Large There are also blue markingsThe Black Longspine Urchin, also known as Long spined Sea Urchin, has a body which is predominately black with a red eyespot in the center. The spines on these urchins are long, thin and completely black. They are a very delicate looking urchin, which are actually very capable of protecting itself. These urchins are excellent algae controllers for an aquarium housing aggressive fish. Provide an aquarium with ample hiding places and room to roam. Being