trillyen - that's good news on your calcium. Make sure you test your newly made saltwater before your next water change to see what your mix tests like....have I said that before? lolol
I wasn't going to let you buy those corals until you knew what your parameters were. No sense in wasting money if your tank was out of whack. Keep testing, though. Just because you don't have a high calcium demand, its good to test at least once a month when you're tanks are new. You'll get a better handle on what your tank is doing chemically. If you come to the reef club meeting this weekend, and let me know ahead of time, I can bring my alk and mag test kit, so we can figure out what your parameters are.
Your pH being lower overnight is standard for tanks that aren't dripping kalkwasser overnight or running macroaglae refugiums on a reverse light photoperiod.
BTW - I'm going to tell everyone at Premium not to sell you an anemone until your tank is much much older. (closer to a year)....and you've read through all the homework I will give you on their care. Let me know when you're ready to learn about them. As you can tell, the more research and learning you do about something before you buy it, the more money you save rather than waste when they don't survive or cause other problems.