Best dosing techniques

[jason604]

So what do u guys do with optimal results for dosing a sps dominate tank?
So far I'm dosing alk 16x for 12hr after lights out then cal 16x fr the day. I do notice my alk drop from 8kh to about 7.3 or so. Is that too much fluctuation? Should I just split them on a 1hr alternating schedule?