[jon in alberta]

Hi All,

- my tank is about a year old (150 gal)
- inhabitants are IMO 'satisfied' but not thriving

That is my problem - now for the details.
tank specs:
- vertex 260 LED lighting
- good skimmer (not great)
- recently bought (but not turned on) dosers for Ca and Alk ... BUT Ca is around 425 mg/L and Alk is around 3.5 meq/L. (NO3 <0.25; Ammonia <0.25; pH 8.08 .. that's all the test I have). With those readings I don't think I have to start dosing?
- recently bought a ozone generator, with ORP probe. The ORP started at 115 mV and within 3 days of applying ozone went up to and is sitting around 350 mV (which shuts the ozone generation off). I had been applying ozone through the skimmer.

Here is are my questions:
1) Should I shut up and just wait? Things gotta grow, and the tank will mature ...
2) Is Ca and Alk my limiting factor?
3) how is my ORP sitting at 350mV+ with my ozone generator unplugged?

Any advice is welcome.