I threw the worms in with the surfboards and within a week they completely ate the surfboards, which can make a few coffee cans of soil. They just eat surfboards and poop out soil? After the worms eat the foam, what they leave behind gets fed to them a few more times in different forms. I wanted to grow food and I wanted to learn to do it the right way by regenerating the soil. Or teach worms how to eat old surfboards to make soil.