The new Coralife Bio-Sponge Balls feature an unsurpassed surface area for superior biological filtration and gas exchange. The patented design allows oxygen rich water to be supplied to the biological sponge inside, insuring that all water passing over the Bio-Sponge balls is completely biologically filtered.
One gallon of Bio-Sponge Balls has enough surface area to provide biological filtration for approximately 50 gallons of marine life. There are approximately 40 Bio-Sponge Balls per gallon and each Bio-Sponge Ball has a surface area of approximately 75 square inches.
Qty Available: 1
16 pk $3.99
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