help me!!!! how can i control the snails that came with my live plants.do they make a chemical that maybe will prevent them from breeding?i have been catching them and freezeing them but i cant keep up(i do this everyday).and how do i buy plants(live) with out snails or eggs.i did not see any on the last ones which was the only time i ever got live plants.i want more live plants but NO MORE snails.thanks