I think I will try a salt with a higher calcium level. Right now I am using Instant Ocean. I think I will try Reef Crystals and see what happens. I tested my makeup water last week B4 adding it to the tank and the calcium level was below 400, somewhere around 330 or something like that. This plus dripping kalk might be enough.
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230 mixed reef / 230 gal sump/fuge
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