I think that since RES tend to be a more bottom oriented species the near-bottom activity will help sweep settled solids downward in the cone. Time and experience will add more information to the story. Consider a form of mini-polyculture and adding 1-3 small (3"-5") bottom active koi or common suckers to the tank to help stir and move settled solids downward.
Last edited by Bill Cody; 12/25/1211:55 AM.
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