last summer we bought ''microbe-lift barley straw extract plus peat liquid --2 liters '' it cost $42 . we used about 1 1/2 inches which is less than 10% and would like to be rid of the rest . i'd sell it for $25 shipped , it's heavy and shipping is probably $6 [ my guess] . if you are within 20 miles i'd meet you half way and sell it for $22 . we are using an algaecide instead of this product . . .peace...........hope this wasn't put in an improper area .