kH and pH and Calcium problems

[moppy]

Can anyone help me with this as it's driving me nuts!!!

My kH and Calcium have been low so I've been dosing with the Reef Builder stuff and I've FINALLY got them both up but....

of course, now my pH is way too high. Any idea what to do to raise kH without causing a spike in pH? or what to do now that the pH is too high? or what to do to get all three in balance without causing this problem?

Start:
pH 8.0
kH 5.5
Calcium 300
Magnesium 1100

End:
pH 8.5
kH 9.5
Calcium 450
Magnesium 1300

THanks