1) What is the main function of KW? Issit to mix with freshwater so as to maintain the Ca level in the tank?
YEs!!!!
2) Is that is so, why do people choose to use KW instead of using Ca additives?
It maintains the CA level And prevent PH frm fluctuating.
3) I heard that KH also affect the KH of the water too. Am i right to say that if i use KW, i can maintain Ca level and maintain KH levels too
Not necessarily.KW must be added by slow drip method if not the PH,your fish will up lorry .
All these r jus my 2 cents,any one who thinks that these r wrong pls correct me!!!
HAppy Reefing