Yes I agree, I went looking for that study and anything I could find didn't really seem solid too me. I think the nutrients that are already feeding the cyno are contributing more to the out break than some trace elements being added from clean new salt water. Unless my make up routine for new salt water is really flawed which it's not.

I think I am going to do a large WC before and after lights out as the theory that new saltwater is feeding the cyno, is a loose theory at best and while I can see where trace elements could be helping feed it I am sure any nitrates or phosphates in the system would feed it more.

Large WC have been my life lately and are doing nothing to bring the numbers down.

Yes I have RO and use that to top off, but not before the water is mixed w/ a power head to add oxygen back into it, which is meant to help keep PH stable. All filters on the unit were changed were changed less than 2 months ago to eliminate that as a contributing factor.