I have had my calcium consistently just below 400, after weeks of trying to increase it with brightwell aquatics for a few weeks I bought the red Sea calcium additive and added what would get me up to 450 last night today my coral (not sure exactly of the name, if anyone know it would be helpful) look like they can't handle the amount of calcium. They have been in the tank for a few weeks with the calcium level at 400. All other water conditions are normal.
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