I agree, keeping it at full pool as much as you can will greatly diminish the temp fluctuation.

While not that aesthetically pleasing as a rock stream, Cecil's solution of running well water (@ 50 gpm) thru a series of hanging 5 gallon buckets that were filled with a type of biological filter balls worked well enough for him to raise trout in a pond year round. IIRC he had 4 or 5 buckets, one above the other. The bottoms were cut out enough to let the water fall from one bucket to another, but screening was in place to keep the bio balls in the buckets. The bucktes were roughly 10" apart. The water fell into a small holding tank, and overflowed into the pond via a 6" or 8" dia plastic pipe.

The buckets ended up with a bacteria growing on them that also helped remove excess iron in the water. It was a win/win situation for his water needs.


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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).