AmmoBuster Extreme 16 oz., Caribsea. AmmoBuster Extreme is the one step water conditioner that does it all! Ammo Buster Extreme will not only ammonia, chlorine, and chloramine, but destroy heavy metals, even copper, as well. At the same time, Ammo Buster Extreme will replace a fishes protective "slime coat", adds essential electrolytes, boosts alkalinity, and reduces fish stress. AmmoBuster Extreme even detoxifies nitrites.