Originally Posted by MONINI
when you say manual 2part dosing...what are the supplements i should in stock to have my reef healthy?
IF, and only IF your system has the demand, you would need to dose calcium (Kent Turbo Calcium is a good product to use), you would need to dose alkalinity (just buy Arm & Hammer baking soda), and you would need to dose magnesium (Epsom salts from your local drug store works fine). In my opinion, dosing any other chemicals is a waste of $$$.
This article goes into detail on 2-part dosing.
An Improved Do-it-Yourself Two-Part Calcium and Alkalinity Supplement System by Randy Holmes-Farley - Reefkeeping.com