Do LPS use alot of calcium?

[falconut]

Are LPS Colonies typically large calcium users? I would imagine so, since they have such big skeletons. The ones I'm referring to are Hammers, Galaxeas, Frogspawns, Alveoporas, Torches, etc.

The reason I ask is because my system is primarily LPS and my Calaium and Alkalinity seam to drop pretty rapidly. They can go from 410 to 360 and 9 to 7 in a week.

[smp]

I don't think that LPS use calcium at the same rate as fast growing SPS, but they most certainly do need to be in a tank where calcium is maintained either with two part or a calcium reactor.