Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Artificial spawning habitats

Once the pea gravel is there, and it doesn't disappear into the bottom of the pond, I believe the fish will sweep off any silt that accumulates from one year to the next. Catfish are cavity nesters, and need something to nest in to help protect the eggs from predators. A 55 gal drum, old pieces of culvert, etc. Only one end needs to be open. Place it in water 2'-4' deep, with the open end facing deeper water. Search here for smallmouth spawning structure, some people have used the plastic snow saucers and filled them with gravel and small rocks for SmallMouth Bass.