I switched to Optimal from Purina a long time ago and the only reason I'd go back is if Optimal was no longer available. It's a LOT easier to get, you can get it 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).