Sure they eat acans but you can move those to the sump . They only eat aptisia if you starve the shrimp. comparing that slug to the peppermint shrimp is like comparing a Jar Jar binks to an Empire Walker. Like a skate board to a Mercedes. Here is my tank
http://www.canreef.com/vbulletin/sho...d.php?t=101746
I have no wrasses or anything that would eat the slug
If you do a search on other forums you will find that my bad luck is shared by many other people that tried them.