How many Ceriths for 55gal?

Ryka

AC Members
Mar 29, 2009
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I have about a 3-4" white sand base in a 55gal. I am trying to keep the sand turned over, clean, and looking white. Cerith's were recommended. I got one. He buried himself and I haven't seen him move since. How many Ceriths would be appropriate for this situation? LFS told me 20. Or, I'm open to alternative ideas.

55gal FOWLR, Remora Pro HOB Skimmer, Koralia3 x2, Aquaclear 30PH
Tomatoe Clown, Lawnmower Blenny, 2 Feather Dusters, 1 Cerith, 1 Astrea
 
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