I am only turning over the tank 3x an hour so I wil be trying the multiple
reactors. It would be simple to increase the flow but my Altums hide more when
the current is higher. Thanks for the info!


I think it depends on the tank's water circulation. I have a 200 gal tank,
circulation is over 1200 gal/h, so I just use a very big reactor. But if the
turnover is very small, say once or twice the tank an hour, multiple
reactors would be good.

Cheers
Kenneth