okay...so i
was running my parameters as follows:
ph - 8.4
dkh - 7
cal - 400when the tank was just Zoa's, Muzhrooms, and one Monti frag the growth was incredible! (not to mention the overall health and color)...the zoa's were growing 2-5 polyps a week (depending on type), and you could watch the Monti grow daily,
that was wierd...
But once i added the Acro, i noticed that all the tanks inhabitants had slowed in their growth. i test daily, and w/ no parameter swings, there was no reason for this....so i did some researchin' and found this link:
http://www.advancedaquarist.com/issues/nov2002/chem.htm in a thread (link posted by Lakshwadeep, thanx!) ....
after reading what it said about the zones and higher tolerences at higher levels, i decided to up my values. i did this for three reasons...
1) I wanted to see what difference it would make in the corals overall health and growth.
2) To protect against the Ph swing that occurs at night in my tank...(since i dont have, and wont be adding, a fuge.)
3) to give myself a little room for slipping in any direction....
i can say that after upping my parameters to this:
ph - 8.4
dkh - 9
cal - 420all my corals look better than i could have imagined...and no more "bitter-beer-faces" at night...lol

this is the goal parameter:
Ph - 8.4
dkh - 11
cal - 440(i know that was random but it might help somebody, right?)