Blue Ribbon standard plant sinkers. Simply wrap a sinker around the root of your live or artificial plant. Keeps plants from floating to the top of the tank.
Have always needed but can never find at the store
By BR from Boston, MA
On October 28, 2009: Actually I never knew plant weights existed and have never seen them anywhere else - online OR retail! Thanks Petmountain! Really strange to me how such a useful item would not be more common to find. Great product