With the global ban on antifoulants containing TBT, you're in need of fresh tactics to eliminate a scum uprising. Interlux's new Trilux packs just as much of a punch as previous antifoulants, without the pollution. Trilux 33 is formulated with copper thiocyanate for use on aluminum boats, outdrives and outboards, and can also be applied to fiberglass wood and various underwater metals. It's available in bright colors as well as black and white. Prices start at $189.