DIY Black Waterfall Foam is totally fish safe
Black Waterfall Foam is a low expansion, high-density foam used in the construction of natural looking waterfalls and streams.
Expanding to fill voids between rocks and liner, this DIY black waterfall foam directs and diverts water over stones and where you want the water to go. This product minimises time in building waterfalls and streams with its ease of use and fast curing times.
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