What are you adding to your tank?

[Oilers]

I am looking to put in an order for some additives. Right now, I am using SeaChem Reef Calcium, SeaChem Reef plus, SeaChem Mg and Sr, Kent Marine Coral Accel and Caribsea Purple-Up Accelerator. I am just wondering if there's something else I should add to the water. I have mostly LPS and zoas. However, I am looking to get into SPS once I get my lights upgraded to LED.
Is there any advantage over using the Kent Marine Calcium buffer part A & B additive compared to the SeaChem Reef Calcium I am using?