The problem with wood is that you need smaller pieces closer togther for small fish, and larger pieces of wood for the larger fish. It's not the large pieces decaying fast, but the smaller ones.

The ships that sank, are typically in salt water, and at depths where salvage is not possible. I don't know the oxygen levels down there. Less O2 = slower decomposition.

www.hoosierpondpros.com


http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).