You need 3 tests to get going: do the first two often. I'm assuming this is pretty much what you're already doing with your lps: I'm covering this just so if there's any detail you've missed, it's in here.
Test 1: alkalinity. Should be 8.3 to 10.
Test 2: calcium. Should be 400-450.
Test 3: magnesium. Should be 3x calcium reading.
Other parameters: temperature 80; salinity 1.024 to 1.026.
Stability is good. Sps detest rapid change. A sump is a good thing, so you don't have to do additives directly into the tank with the corals. Sump or not, dissolve all additives in ro/di water before adding.
Ro/di is the best way to go.
Flow doesn't tend to bother them, because their polyps are short, and they don't tend to take damage from it. If one does break, in a fall or such, just glue it to the rock and it will go on growing.
That said, just to be thorough, now the nitty-gritty of your question: sps can't eat the way lps do. They eat light....but...they can burn, or sort of suntan, which isn't desirable either. Start them on the bottom. If they look to be tolerating the light, move them up another few inches. If they color up, it's a good change. If they start losing color, get them back down a level.
Ultimately most will like to be on the top, and they'll soak up calcium like it's going out of style once they start to grow.
Like your lps, most have their extension at night. They do absorb food from the water column. Some writers have said they rely on bristleworms to live, since the bristleworms break down fish poo to a size they can absorb. Whatever the facts there, I personally keep a lot of worms and inverts as well as nanofish, and I can see growth happening.
And don't move or handle them with your bare hands: they don't like a change of orientation and they don't like our finger oils. But you can transport them in open air without much worry.
I drip acclimate my sps, to be sure they're eased into their environment: it's that not-liking-change thing. I don't do any preliminary dip or qt because I know of a certainty the lfs I use is run by a reefer who is meticulous and the corals are clean. If I were getting corals from any other source, I would take extensive precautions, more than with my fish, because there are some pests (red bug; flatworm) that can be a major pain if loosed into a tank.
I'm far from an expert in this---more of a newbie myself. But I'm really fond of these colored sticks. I can't wait to see what they become---but because they're corals, waiting is the name of the game, isn't it?
