I seem to have an infestation of snails in my 55 gal tank.  They have small
spiral shaped shells and are more flat than tall.  Every morning I see about
twenty on the glass and I scoup them out with a net only to see more
reappear.  Is there something I can add to kill the snails or stop new eggs
from hatching without harming fish or plants?  Any recommendations would be
greatly appreciated.  They are also starting to attack some of the amazon
swords and other plants.

Rich,   Tucson   hextek at aol_com