I use a 7part buble Magnus doser and still top off with kalk lol.... Saves me money on 2 part and for some reason my corals love it.... I have experienced tremendous growth since I started using it... I kick my self all the time for the years I didn't ..
lol wow! Well I have this other stuff now.. I will try that next to see if I get better results. What all do you does in your tank?