I just started a new tank this past weekend...It's not realy a new tank I used lr from tanks I already have up and run. I have mostly soft corals and a few leather in it. Today I added two candy canes, most of the rock has coralline on it but there are few that don't. If I add something like purple tech or purple up will it push my calcium lvl. to high. Rightnow my calaium is at 440 mag. 1250 ph. is at 8.4 nitrates are about 20ppm(large bio load). Thanks for your help.