Is it really shiny silver? I wanted to get that one, but I didn't. Which bulbs did you buy?
For nitrate I dose Stump Remover KNO3.
For phosphorus I dose Seachem Flourish Phosphorus.
For potassium I dose Morton Salt Substitute.
For micros I dose Seachem Flourish Comprehensive.
For calcium and magnesium (I use RO/DI) I dose a little bit of Seachem Reef Fusion 1, since I have it for my marine tanks already.
For KH alkalinity I dose baking soda.