LPS calcium and alkalinity

[jorjef]

I have a plie of LPS and was curious where people keep their calcium and alkalinty levels to keep the corals happy... My readings are 7-7.5 and about 460 last time I checked. I'm trying to raise the alk., not sure why as everything seems to be okay, just assume it should be 8 plus. Is there a level where people have seen more growth from the corals I.E. when alk was over ?? or when calcium was a min. of ??