Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Natural Spring in bottom of Pond

I see this is an older post but I have a similar situation. We had a marshy area on our property and decided to dig it up...uncovering a natural spring. The flow is about 2 gal/min 120/hour. We ended up digging out a n area of 25' x 16' x 4-5' deep. Should the spring be piped to the top or is it ok on the bottom for filtration? There is a creek near by that I can run an overflow line to. Another question is : will there be enough volume of water for a few Bluegill and Koi? This year we will establish water plants and other vegetation for the pond. Once established we would like to introduce fish. Thanks