IM 25G Lagoon Tank Build

[Synthesis]

So I tested newly made water with reef crystals and did the test. It also measured at 550ppm. This is of course higher than the Red Sea test kit will go in a single test, so what I do is add more drops to see when it finally turns blue than do the math on that. So it might not be perfect measurements but it's close enough. So it's the reef crystals causing the calcium to be high. I mix at 1.025 specific gravity.

This is strange...wouldn't someone else experience this? I have been using reef crystals since inception and have always had calcium really high. So i know it's not a result of a bad bag. It does say right on the bag that it has added calcium.

Would the high calcium impact SPS growth in a measurable way? My alk, ph and magnesium are all at ideal levels.