That should work if the area inside the wall is large enough. How big is that area? I've made them with help from TJ on how to design them and they work. I used just 1 cinder block high wall on the shore side, IIRC I used 5 of them on one pallet to make the wall.

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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).