ccCapt why did you stop ozone?
I didn't have good results, in fact I lost a few corals from bleaching.
Ozone is deadly...to fish, inverts and humans. I bought an Enaly 300mg/hr ozone generate from my LFS (which is about 1 hr away). I knew 300 mg/hr was probably too much for a 75g tank, but I figured the ORP controller would keep everything in line.
Well what was happening was the controller would shut down the o3 generator, but I think the 300 mg/hr was just too much and the ORP would keep rising...sometimes to around 500 mV. I think this caused the bleaching that killed some corals in my tank.
When you run ozone, you must run the output water thru carbon to remove any residual o3 or acids from the water. That was sort of a hassle. The generator kept breaking too. It would work for about 2-3 months and then not produce any o3. The LFS always replaced it, but I went thru 4 before I gave up on them.
I think if I bought the right size generator I may not have had any problems, but everything ended up being a hassle...and I like to keep it simple.
Making sure all output water went thru carbon...hassle
Carbon over air output of reactor (to remove residual o3 from releasing into the house)...hassle
Controlling amount of air going into generator...hassle
Recharging air dryer for o3 generator...hassle.
Why can't you run it in the winter? Time of year has no affect on anything regarding running o3. If anything, winter is probably better since the air is usually drier and the air dryer won't need to be recharged as often.