Ok, Have been dosing fusion #1 and #2 and recently having to do a lot of increasing and try to get it balanced. Have a euphyllia dying I think because it is not so stable. Added Apex and noticed PH has a 7.71 to 7.86 swing daily. Decided we want to use Kalkwasser to be more stable at this point.(Wish I would have started with it) How do we go about either adding or switching? We have the reactor and powder to get started. Do I turn off the other dosers or just slowly add to keep where I am now. in last month have gone from 4 to 12ml of fusion 1 and 2. I am also dosing Mag. Alk right now is 7.8, Ca 450, mag 1430. Temp 78.9F and salinity 1.026. Just don't want to cause a big swing in parameters. Tank is a 240gal (Toltal volume about 286g) mixed reef. 2+yrs old.