That structure will be excellent for perch to drape their eggs. To make more spawning even more successful you could collect egg ribbons from tree branches placed temporally along the shoreline, remove the egg ribbons and place them on pipe of your artificial weed bed. I hope you have seen the structure thread in the Common Pond Q& A Archives?? . See this one that shows a snow fence crib made by Brettski and posted by ewest It is just one of many ideas of snow fence habitat.
