These two fish are from the same brood and purchased at the same time so why are they so different in size?
The bigger fish (about 11 inches) was kept in a 500 gallon pond with optimal water quality and was fed by a waterfall and a 25ft stream. It is 18 inches deep.
The smaller fish (about 6 inches) was kept in in a 2,400 gallon pond with similar water quality but no water features. It is 36 inches deep.
Both fish were put in their mature ponds that contained other fish in July and this picture was taken the following May.
All water quality tests were taken and compared and found to be within normal range. The oxygen level in smaller pond was 8 and in the larger it was 7.
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