EasyPro DIY Black Waterfall Foam, 20 oz

Use to fill in cracks between rocks to prevent water from being "lost" over the waterfall.

• Patented trigger system allows for multiple uses.
• Improves water flow visually and black color hides foam in the shadows of the rocks.
• Trigger will dispense foam in any position.
• Fish safe, non toxic formula.
• Minimal expanding foam - fills in cracks with less trimming of excess foam.