Yeah I was planning on doing water changes, getting everything stable, and then trying to dose KalkBefore going to kalk i would get the water changes done over the next few days and get things stable. Then monitor and watch and see how quickly your calc/alk drop as that is the only thing that kalk will affect. To much and youll shoot your calc and alk sky high. I have a 13gal top off that is gravity fed and i only do 1tsp in that entire 13gals. mix well and let it sit for 2hrs then i top off the sump with fresh none kalk top off water and then open the top off back up so it doesn't pour in a lot of kalk water. if that makes sense.
alk is everything in tanks, unstable bouncing up and down kills corals beyond anything else but salinity bouncing.