3 part or Ca Reactor

[ScubaSteve]

To comment with my limited experience in dosing, what attracted me to 3 part is the the ability to really dial in how much you dose. Calc reactor are like dosing kalk in that alk and calc are going in at the same ratio. If your levels are off for whatever reason, you can up either calc or alk independently without needing another product. So far I've found 3-part to be just dandy. But then again, once a calc reactor is dialed in it's good...