It sounds like the water in the creek has a LOT of nutrients in it......

FWIW, a client has a pond that also has a pump in it to use the pond water as a waterfall/stream feature on his property. I stocked Tilapia at the rate of 40#/ac in his pond and he had absolutely no FA problem in his pond all summer long. I had to treat the stream about every 6 weeks for FA. The Tilapia couldn't get into the stream to eat the FA.


www.hoosierpondpros.com

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).