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Problem
Scarlet hermit crabs are one of the most reef-friendly hermits available, known for grazing algae and biofilm...
Species
Asterina starfish are common hitchhikers that usually act as harmless algae and biofilm grazers. In balanced...
Equipment
Pencil urchins are strong, opportunistic algae grazers that work best in rugged, well-secured systems....
Collector Urchin
Collector urchins are effective algae grazers with a lot of personality, but they’re mechanically disruptive...
Longspine Urchin
Longspine urchins are powerful algae grazers best suited for large, well-secured reef tanks. They’re reef...