A year ago lost a clam to pyramid snails. Fast forward just got a nice 5" maxima. After couple weeks found about 12 pyramid snails on it during standard tank cleaning. Got all snails off but literally next day came to find nothing but the shell. Was healthily and looked great when I found snails. So my question is do the snails die without a clam? I trust the guy I get frags/clams from. He scrubs and cleans with a magnifying glass. We all know it's impossible to be pest free. So I either already had them in my tank over that year or were on clam when I got it. Looking forward I'd like to get another clam. But not if I'm infested with these snails forever. Could get a six line but you understand my question. Thanks.