Sure-Life Foam-Off is a safe and effective way to remove surface foam from livewells and bait tanks to ensure the health of your catch. One teaspoon of non-toxic Sure-Life Foam-Off liquid treats up to 15 square feet of surface area. Harmful surface foam is formed when proteins and lipids build-up in the water, which is typically caused by excess slime and waste. The foam that collects on the surface of the water limits the amount of oxygen that enters the water making it difficult for fish to maintain low levels of stress. Sure-Life Foam-Off eliminates harmful foam and keeps fish at their optimum weight.