Hey Peter, I hit Mr. Wilson up for your typical orp number but I think it got missed. I am trying to get a handle on what most bigger tank guys are holding their number at. Despite having about 500 gal or so in volume my number seems to jump around more than I thought it would before I started monitoring it. I was wondering if that was normal or if I have some sort of hidden issue
We haven't used the controller yet, but I did calibrate all of the probes. In general, ozone is turned on at 350mv and shut off at 400mv.
ORP is a nice magic number, but it can be misleading. A high number can exist in adverse conditions and a low value can occur in a successful tank. Having said that, it is still a good indicator of overall health, or at least changes in the environment.
I haven't had much time for the thread over the holidays so I will check the ORP just for you tomorrow
I checked the PAR again today and discovered that the lights using magnetic ballasts are almost twice as high (350 vs. 200). This is true of the Phoenix and Aqualine bulbs. The Aqualine are twice as high in PAR as the Phoenix with either ballast.
We received the new pump for the Skimz skimmer, and it is performing moderately well. I shut off the auto-washdown on the RK2 to compare the $4,000.00 skimmer to the $400.00 one. I will let you know which appears to do a better job.
The plan is to replace the bubble generator (venturi) pump on the RK2 with a Blueline 100. I think we have a good idea of a performance baseline by now. It can only get netter from here.