Timely as just was re-reading Borneman's book on corals, the section on water movement.
He describes flow in cm/sec and like you mentioned observing particles in the water column.
Low flow 1-5cm/sec
Med flow 6-20cm/sec
High flow 21-50cm/sec
Very high flow >50cm/sec.
Another way flow is give is by turnovers per hour, I'm probably around 25x tank volume per hour , guessing that would be medium.
New to zoos, so no experience there.
Last edited by mark; 10-18-2006 at 01:04 AM.
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