Hi John! Welcome to the forum!
Looks like you have a great filter there, I have a few questions if you don't mind please...
I see where it would be a no-brainer solution for cycling a new tank, but once the nitrates are removed does the filter need to be adjusted for less flow/activity?
Along those same lines - if I added this filter to an established tank (with no nitrate problem) would I need to reduce the water changes to give the filter more nitrate to work on? In this case the filter would be used to prevent a nitrate problem as opposed to fixing one.
Finally, if I had a sudden spike in nitrate in a tank and added the filter to reduce it, could it be run 'more aggressively' than is suggested to resolve the spike?
Thanks in advance for your time and information!