Barley Straw Extract-Tetra Pond Barley & Peat Extract creates naturally clear water and reduces pond maintenance. Regular use prevents discolored pond water and maintains the natural beauty of waterfalls. Releases natural humic acids from barley straw extract and liquid peat. Replaces messy barley bales. Safe for fish and plants when used as directed. Treats 1250 gallons per 8.4 oz. BARLEY & PEAT EXTRACT 8.4-oz BARLEY & PEAT EXTRACT 8.4-oz $4.25 SKU: TET16293 Click here to save 5% off of your order! BARLEY & PEAT EXTRACT 16.9-oz BARLEY & PEAT EXTRACT 16.9-oz $6.99 SKU: TET16294 Click here to save 5% off of your order! BARLEY PEAT EXTRACT 33.8oz 1-LITER BARLEY PEAT EXTRACT 33.8oz 1-LITER $12.75 SKU: TET16296 Click here to save 5% off of your order!