...That's a puddle, and puddles are harder to keep fish in then ponds. Oxygenation is a fish's best freind. Weather can alter that, vegitation and temp can alter it, and also....have you used/changed lawn firtilizers lately? Keep in mind, it's still part of the water table. If you go to lake earie and grab a fist full of zebra muscles, they'll grow into all the filtration you'll ever need within a year. Gunna be ugle as hell though. You brought up another concern; Rotting fish kill fish if they dont get proccessed by nature. To keep a healthy "pond system", you need all the "positions" filled, including that of decomposers. Catch some craw dad or get'm at a bait shop, toss them in, couldn't hurt. graemlins/thumb.gif