best way to add additives

I'm wondering what everybody does to increase their cal, mag, alk, etc. levels. I.e.: What is your preferred dosing regimen, timing, and amounts? What would you say is too much at a time before you see negative effects on your corals/fish? Do you tier your dosing... calcium one day, alk the next, mag the next?

The most important part of dosing is testing. Use a good quality test kit like Salifert. This will tell you what you need to dose in the first place. Regular water changes also help to balance things out but depending of the size of your aquarium it can get expensive. Get a good two part alkalinity and calcium. Magnesium is also important. You don't need to tier the dosing between days. What was mentioned above about waiting a few minutes between is sufficient. In fact IMO its better to dose your CA and Alk in same period of time to keep them balanced.