Just bought a Ozotech 200 and need any help or suggestions on the install, before i do it myself. thanks
Connect it to your skimmer via an air intake on the pump. Make sure you use ozone safe tube. Start off at 10%, and adjust this up by 10% each week.
I think they are good, keep the tank water cleaner and in my case I am covering the top of the non display tanks at night to help keep them warm, so I lose some normal air exchange.