In the evening about an hour before sunset I can see what appear to be clouds of dust where each fish has surfaced or rolled just below the surface. The clouds dissipate in less than 30 seconds and are not visible at any other time of day. My days have been almost entirely sunny with temps in the mid 90s, I have not had rain in a month. This is the second time that I have noticed this and it was during a similar set of circumstances about 2 months ago. I can only see the clouds when standing above the level of the waters 10 or so feet or higher. In a week I will see this on 3 or 4 evenings. I have almost no vegetation, an over abundance of fish and feed daily. I am removing fish daily to reduce the overall numbers and am adding floating islands.
Does anyone have any ideas, first is it a problem, second how big of a problem and last, if a problem what should I do?
I am almost certain it is not the Lone Ranger and Tonto.

1/4 & 3/4 acre ponds. A thousand miles from no where and there is no place I want to be...
Dwight Yoakam