Due to the release size of the Tilapia being small and concern of their being quickly consumed would a small outdoor pond on the cheap side be a benefit? Something like a plastic lined pit or cheap swimming pool to allow the numbers to increase and add some size. If a small pool was managed to capture and release the smaller ones so the larger fish were not stunted from over population it seems this would add to the forage while allowing the initial stock over-wintered to grow larger to ensure their survival. Now your being in SW Ohio...not sure if some of the overnight temperature drops may present a problem.
