I have tried BRS two part, just recently kalk, and now I am using reef fusion. I like that it supposedly has some trace elements and helps keep magnesium up. I did read that although it says it’s supposed to be equal parts the calcium is mixed a bit stronger. I ask because while there is nothing wrong with BRS two part, I can get reef fusion locally super easy and for a decent price and kalk was not able to keep up. Anyone using it successfully? What ratio do you use? And how much are you adding?


