Flow

[mark]

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.