And, isn't there a risk that the assassin snails overrun the tanks you want them to clean out? I kind of get the feeling they're not too particular about what they eat... slow moving fish... decaying plants... not so decaying plants... fish eggs... small children... _________________________________________________________________ Want to read Hotmail messages in Outlook? The Wordsmiths show you how. http://windowslive.com/connect/post/wedowindowslive.spaces.live.com-Blog-cns!20EE04FBC541789!167.entry?ocid=TXT_TAGLM_WL_hotmail_092008 _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member