Thanks Alan, I should have posted the specs etc.
Tank 1.2 x 450 x 450
Sump 1,1 X 350 X 450
Lighting 4 x 54w AM whites, 4 x 54w ATI blue plus
4 x Tunze circulating
OR 3500 uplift
AM Blue 5000 skimmer
AM Kalk Stirrer
AM Calcium Reactor with controller and Probe
AM Carbon,Phosphate and sulphur reactors
DSB
UV Light and Ozoniser
I dose Trace, Strontium and Iodine once a week, with 2 teaspoons of Kalk once a week through Automatic top up. My parameters are: Nitrite 0, Nitrate 0, PH 8.2, dKH 8, PO4 0.02, salinity 1.023. I do a 45l water change once a week(Seachem Reef Salt) with RO water.
Alfie