Raise Alk??

[dcw1sfu]

So I have yet to dose anything besides running Kalkwasser in a two little fishies kalk reactor with my Ato. I use Reef crystals salt (starting to really dislike the brown residue it leaves in my mixing barrel) and perform 10-12gallon water changes weekly on my 60gallon.

Currently I've got a mixed reef with quite a bit of it consisting of SPS.

My Magnesium seems to always be fine at around 1350, however my alk is on at 7dkh and calcium is at 400-410.

I believe it stays at this level pretty stable with the Kalkwasser and my PH stays between 8.1-8.4 (8.4 was the highest it's ever been which was yesterday after having the doors in the house open all day.

I'm wondering if I should dose the tank enough to get the alkalinity up to 9 and the calcium up to 440ish and then see if the Kalkwasser will keep it there. What's the best products to use for this that won't raise my PH as I'm already at the high threshold.