Thanks! Yes, the H100i Pro pump has 2 power fan cables. My idea, is to connect one 3-way splitter to each one, and then connect the 3 ML to one splitter, and the 3 LL to the other. This way I can control the ML speed and LL speed, each group with their spected RPMs.
My only concern about this is how much ampers does each pump fan header provides, as 3 LL take 0.9A and 3 ML Pro take 0.657A, so if each fan header of the spliter has 1A limit, I could daisychain the 6 fans to the pump.
I check about RGB, and Corsair Node Core distributes the lightning effects through a math with the amount of leds, so that should be some try and error.