Just to add to the other comments here. If you haven't called the guy who built the pond and let him know what you are seeing and experiencing, I would and see what he says.


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).