IMO, I would let your alk come down a bit more. IIRC, NWS is around 8 dKH, and 10.5 is getting borderline too high. Personally, I like to keep it between 8-9.
Ca 445 and Mg 1350 is pretty good.
Once you get your #'s 'balanced', what I would suggest is to find out how much your Alk drops per day. Test today, don't dose anything, and then test again the next day to see how much it drops. Do this several days in a row and you should see a pattern.
You then want to find a 'balanced' method of supplementing both Alk and Ca. Some of the commons methods are using kalkwasser, two-part solutions, or Ca reactors. Using one (or more) of these methods, you then want to dose the proper amount to make up what you use on a daily basis.
If using kalkwasser or two-part solutions, the Reef Chemistry Calculator found here:
http://home.comcast.net/~jdieck1/chem_calc3.html is an excellent source to figure out how much you need to dose.
If using a Ca reactor, it's my understanding it takes some 'dialing-in' to get the dosage to match consumption.
You'll probably end up running quite a few Alk tests when starting out, and also Ca tests (although it's the Alk tests that really help to determine the rate of consumption, IME). After a while, your tanks consumption pattern becomes evident and then you test less frequently...at least that was my pattern
In general, the consumption is pretty steady, but will change as corals get bigger, or as you add more calcifying corals, etc.
If you want more info on using kalkwasser, here's a great article:
http://www.reefkeeping.com/issues/2005-01/rhf/index.php
If you don't mind DIY, here's Randy's DIY 2-part recipe that many reefers use (me included):
http://www.reefkeeping.com/issues/2006-02/rhf/index.php It's much cheaper than retail 2-part
hth,
rob
