Optimal feed has a "best used" date of 6 months, but has a 12 month shelf life. With that said, I've had some 2 years and have not noticed any off smell or change in smell or appearance.

snrub, you can order from Optimal 12 months of the year so there is no need to wait on the feed stores to carry the feed. Optimal is shipped right to your door.

www.hoosierpondpros.com

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).