You can also drop the tree in the pond, and if the pond has water in it, tie a few cinderblocks to each end of a rope and drop that over the trunk of the tree to help hold it in place.

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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).