I am going to set some structures in the water before I get fish in the pond . I have some stuff put together and am wondering how deep to set this stuff and if anyone has any ideas on how to improve on what I have, I would appreciate it. I plan on mainly having bg and lmb maybe a couple 3-4 cc. Was wonder on putting wire mesh on some ends of the pipe to reduce the size of fish to enter.

A little snow, Please!