We use Sea Hawk Islands 77 PLUS or Bio cop TF (same paint). It really works well in warm waters of Florida and Bahamas. It's like Micron 66 but it can be used in fresh water as Micron 66 cannot (but it's a great paint, works even when your boat does not move) In another note, the cooper coat works but you constantly have to scrape the bottom to expose the fresh copper to activate. Hope this helps. George