Hey guys, this isn't just another "what salt is best" post, I started using AF Reef Salt a month or two ago and find that the calcium in it is only about 385 freshly mixed (bucket claims it should be about 440) and I've always been told 420 is about where your tank should be for hard corals so I'm a little low. I posted something similar a few days ago and people seemed to think 380 was ok for calcium but is it likely to slow growth if my levels are only 380? I'm considering switching to a different salt if this is gonna affect my coral growth. Do you guys think I just got a bad batch maybe? Everything else is where it should be.