Yea, it’s subjective depending on everyone’s tank but I’ll stray away from acros first and go for the “easier” SPS corals. What you mean by 2 parts is, AFR? Sorry I’m still new and is still finding out new stuff. I will try to see and how I would dose my AFR to achieve the most stable levelsGrowing acro's is not that difficult. If you plan on taking care of your reef you will be fine.
Just dose your 2 part equally in the span of the day( recommend a auto doser) since a 1dkh drop can't b e doser all at once. I would dose at night since KH will help you pH to stay elevated as well. The minute the light turn on in the morning your tank will have that 8dkh to be consumer during that day( 1dkh in this case)