Hey all

Like Light mentioned,you will want to test before dosing any supplements.

For right now,none of your corals require calcium or at least not much.Water changes should replenish anything that gets use up.My system concise of LPS and soft corals.My calcium consumption is fairly low so I use mostly Kent liquid reactor and Kent turbo calcium.
 
I am very confused that after two years your rocks don't have any coloration. I also see a lot of micro bubbles in the first picture that you want to try to get rid of if possible.
 
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