Anjon 12 Oz. Black Waterfall Foam

A must for Koi pond & pondless waterfall installations. Waterfall foam helps you fully enjoy the visual and sound effects of splashing, flowing water. We all know that water rushes to the lowest place; waterfall foam prevents your waterfall and stream from disappearing beneath the rocks and stones in your feature. It fills gaps and voids, forcing the water to flow over rocks and stones, giving you the full effect you're looking for.