looks like a regular chowder clam to me. remember that clams are filter feeders and feed on phyto. I think they mean it would help lower nitrates by digging in the refugium sandbed not that it eats it. IMO it would do more damage when it dies of starvation than 100 live clams will ever do to help your water quality. _________ &&&&20 Gal. , Millenium 1000 & 2000 filter, 130watt Corallife 50/50 reef lamp. Maroon Gold-striped Clown, Pygmy (Cherub) Angel, Skunk Cleaner shrimp, 8 Turbo Snails, 1 unknown cone snail , a branch of red grape calerpa , Sun Polyps, Blue-Green Striped shroom, Red shroom, Zoo Polyp colonies, & Green Star polyps, green monti. |