<img src="/images/welcome.gif" width="500" height="62"><br><b><i><big><big>To Reef Central</b></i></big></big>
IMO it very hard to keep clams in a nano. first the clams that many consider "low light clams" grow very large. And all clams need very stable water,high CA and ALK, and can quickly deplete a small tank of CA and ALK. the smaller clams need a ton of light and that can be hard to do with a small tank.