Here are a couple of cages I just planted fish into. The one with the blue tarp is 5 X 5 X 4 feet and contains about 350 yellow perch in the 5 to 10 inch range. (Most run 6 to 8 inches.)
The one with the brown tarp for shade cover is 3 X 3 X 4 feet. It has 250 bluegills from 3 to 5 inches.

I put my fish I produce in cages (except for the trout) until I can sex them or they are of a sex I do not want in the pond free swimming and able to reproduce, such as male yellow perch or female bluegills. I prefer to produce them in a separate pond. My goal is to have an all female perch and all male bluegill pond augmented with some smallmouth starting this year.
Here's how I haul fish from pond to pond and move fish cages. These two cages are ready to power wash the algae off of for future use.

This picture shows you how algae can clog the mesh on your cage. I brush them while in the water about once a week with a stiff push broom on an extendable handle. If I take the cages out they are powerwashed.

Here a cage is being powerwashed to remove the algae.
