There is an article about breeding feeders around the site somewhere that describes the impracticality of it.
In order to do it, you would likely need a tank far larger than that which you have your p's in.
Edit: Here's the article: Why breeding feeders doesn't work.
In order to do it, you would likely need a tank far larger than that which you have your p's in.
Edit: Here's the article: Why breeding feeders doesn't work.