I am considering starting a small guppy-breeding project. I was wondering if anyone has any experience with "livebearer breeding units" sold in most aquarium stores. There is one at Petsmart http://www.petsmart.com/products/product_26991.shtml for $14.99. I was wondering if this would be a worthwhile investment or if I should just use floating plants or decorations to provide fry with a place to hide?
