I recently moved and while unpacking some boxes in the cellar discovered my cache of Beckett activated carbon that I was using in my pond at my old house. I have 10 pounds of it, don't plan on setting up a pond so may use it in my reefs if the Phos is low. Was going to test it but recently ran out of PO test and haven't refilled. Has anyone tested the Beckett brand? Thanks.
R/Duke
R/Duke
