I am going away for a week or so and of course I can't check my reef. I have had occasional problems with my Ca reactor clogging and filling with gas. I was thinking I would just turn off the gas while I was gone. Would this cause my Ca levels to plummet? I have a bunch of corals, frags mostly, so I don't think demand is enormous. I thought I would keep my kalk reactor going at a kind of low level. Any opinions?