How are you acclimating before introduction to tank? Is the reef fusion for calcium and alkalinity? If so I don't think you need to dose.
Watch out for your lfs ro/di. I used to buy from lfs, got my hands on a tds meter and it read higher than my tap water
Watch out for your lfs ro/di. I used to buy from lfs, got my hands on a tds meter and it read higher than my tap water

