CRYSTAL LAGOON 16oz CLEAR POND: CRYSTAL LAGOON 16oz $12.50 SKU: CLP37 QTY: Click here to save 5% off of your order! CRYSTAL LAGOON 16-OZ Crystal Lagoon clears cloudy water caused by algae, dirt, bacteria and other organic material and removes metals. Most importantly it is safe, natural, and so biodegradable it is actually good for the environment. 16 oz. treats 8,000 gallons.