Question about dosing pump

[Oilers]

Alright, I just have a purchased a Marine Magic dosing pump since I can't say no to a good deal but I have no clue what to do next. How do I set it up? If you have one already set up and can send me a picture to see what it supposed to look like, that would be great.
I assume that I would use the dosing pump for Ca, Mg and Sr, am I correct? Where do I buy those products? I have some SeaChem products that I bought from J&L and I have been adding them to the tank manually. Can I use them with the dosing pump or do I need to purchase something else?
Last question, what dosing rate should I set the pump at to keep the fishes and corals happy? I have a 150G tank, mostly LPS and zoas and 10+ fishes.
Thank you.