I was looking for one large container because i have an oxygen injection system but i only have one difuser. If 50lbs is the max, then i will go with the 13" The pond is actually 20min north of chatt, about a 2 hour drive. And yes, just looking to catch and eat, they will not last much past April anyways.Not much of a forage base, probably just what has natually found its way in there in 5 months. Hoping these will eat floating food. Thanks for the help BL
