Promotes beneficial bacteria growth

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Safe on berries

Shades and protects

DIY and Elite Pond Waterfall Boxes by Blue Thumb Backyard Koi Pond Supplies_Predator Control & netting Promotes beneficial bacteria growthElite Series Waterfall Boxes The octagonal design provides maximum strength, and a much easier shape to camouflage than circular or rectangle designs. With 2 bulkhead openings, pipes can be installed from either side. The second opening can be used as a back flush to perform water changes or connect multiple pumps or plumbing lines. The two included Matala mats have two times the biological benefit and will last up to four times longer than