Dec 8, 2012 #1 Snookin Well-Known Member View Badges Joined Jan 9, 2011 Messages 795 Reaction score 817 Location Tampa Rating - 0% 0 0 0 Do you use one? Will they make my tank any better?
Dec 8, 2012 #2 Connie Valuable Member View Badges Joined Jun 2, 2011 Messages 2,091 Reaction score 55 Location Alabama Rating - 0% 0 0 0 It has worked very well for me.