Algae Block, Individual Block
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Algae Block, Individual Block
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Your Price $11.99
Item Number 2961801
20
Algae Block uses probiotic bacilli bacteria and a micro-nutrient to clean water systems of nitrates & phosphates0 the nutrients that algae feed on. Algae Block is made of food-grade ingredients and is certified G.R.A.S. This product works around the clock and lasts several months (45 0 90 days).