100 Florida Ceriths
Florida Cerith snails range in size from an inch to 2''. These snails will consume diatoms, detritus, cyano and algae in the substrate especially and will work on the rocks, and sometimes on the glass in your aquarium.
Because of their versatility and hardiness, they are an excellent addition to any marine tank. They are excellent at removing film algae, diatoms, cyano and algal detritus. They are fair at removing hair algae. They will not eat decorative algae or seagrass.
They take time to come out of their shells and move about after placing them in your tank. Please give them at least 72 hours to start moving about. It is abnormal for them to move around right away. Additionally, when the snail is pulled into its shell, the opperculum can pull back around the corner of the circular opening. The shells are not empty, that is just how this species is.