Premix versus dye packs?

So all parts are ordered for my upcoming build (planning on having it done after Christmas). I am wanting a slight blue tint to my fluid, not unlike Jayz video on how to water-cool a PC with corsair stuff a few years back. [https://www.youtube.com/watch?v=5ZnDESqJdyU&t=1178s&ab\_channel=JayzTwoCents](https://www.youtube.com/watch?v=5ZnDESqJdyU&t=1178s&ab_channel=JayzTwoCents)

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I have heard in the past dye will fall out of suspension over time and can clog blocks, but wouldn't that also be the case for pre-mixed coolants? If this is not correct, is there any certain dye that people have had better luck with? And should you match the dye manufacturer to the coolant manufacturer for "compatibility?"

I am planning on doing a yearly flush of my system and cleaning the components, so would fall out from dye be something I need to worry about in one year? This is my first custom loop and just want it to last for a while.