I use the aquaforest components 1,2,3. Seem to be very well. I’m trying out the tropic Marin a,b,c but So far I’m not really sold on it as it doesn’t really have magnesium as as one of the primary components. Aquaforest 1,2,3 has everything plus trace elements
For my 45g I started dosing Polyplab's One. I don't follow the instructions though since that tank only has smaller SPS corals. I dose 1 cap every other day and my levels are stable at 8.5 for Alk and 440 for Calcium. I don't test for Mag.