Microbe-lift Barley Straw Pellets PlusTreats 1000 gallon pond for up to 9 months or a 2500 gallon pond up to four months Specially made for landscaper and pond service contractors costs less than bales Enhances substrates and the decomposition process starts immediately Provides a slow steady release of beneficial ingredients through natural activity Recommended for use with all microbe lift Made in the usa Size: [10. 5 Pound]