Barley Straw Extract-Savio Made from stabilized extract of barley straw. More effective and easier to use than barley straw bales. Performs better than messy, decomposing barley straw with better results in a wide range of temperatures and pH levels. Fish and plant safe. Initial dose 8oz/1000 gal – Maintenance dose 4oz/3000 gal. BARLEY STRAW EXTRACT 16-oz SAVIO: BARLEY STRAW EXTRACT 16-oz $19.50 SKU: SAV460 Click here to save 5% off of your order! BARLEY STRAW EXTRACT 32-oz SAVIO: BARLEY STRAW EXTRACT 32-oz $31.50 SKU: SAV461 Click here to save 5% off of your order!