Dono - You selectively use water from the drainage ditch as fill or make-up water - correct? I am convinced that shiners eat lots of swim-up YP fry. 100's to 1000's of shiners are capable of consuming very high amounts of YP fry that are not much bigger than many crustacean zooplankton. Thus hundreds of thousands to millions of fry can become food over the course of several days as shiners gorge on fish fry.
Correct Bill I use the water flowing by to top up the water level in our pond. In the winter I run the pump all winter long giving the pond a big flush. 5000 gallon per hour 24/7 from Nov till March.
![[Linked Image from corvettejunkie.com]](http://www.corvettejunkie.com/pb.gif)
