Equilibrium is used mainly to increase your GH. It contains, Calcium, Magnesium, Potassium, Manganese, and Iron and does not affect KH. Baking soda is still the most economical KH increaser out there in my opinion
For more info or dosing directions,
Seachem Equilibrium
Greg Watson also sells (or used to sell) a GH Booster that is formulated the same as Equilibrium but much cheaper. You may want to check out his site and see if he still has it
