Oase Spray FoamFix is a pond spray foam that can fill cavities without drawing attention. It has a long-lasting color due to its high resistance to UV radiation. The foam expands uniformly, hardens quickly, and is safe for fish and plants. Empty cartridges can be disposed of in an environmentally-friendly way at PDR collection points. Each FoamFix comes with a practical foam dispenser for one-time use.