Carl, I have the RedSea Deluxe 200. If you don't get the built in ORP controller, then you can just run it for say 8 hours a day on a timer and monitor ORP with a seperate monitor, or I Think you can get a test kit to check for residual ozone ... maybe Gary can add to this thought?

I think the recommended mg/hr starting out is 0.18 mg/hr per gallon of water - Todd can confirm this number? However, that is assuming you are using an air dryer. With our humidity the dryer is fairly useless - you have to change the beads every couple of days :angry

I run mine without a dryer, which makes the ozone production about 50% as effective as with the dryer, so double the above dosage level.

Hope this helps some - feel free to ask more questions here or via PM.

I think Todd has a RedSea unit too, and MikeBoy just bought an AquaMedic unit.