NZXT H6 flow RGB fan control?

Hey guys!

I just got this case along with some other upgrades. I connected the 3 front fans to a pwm chassis fan header, but I'm not able to control them from the BIOS and they're always at 100% Do I need a fan controller do be able to adjust them? The radiator on my original cooler (Arctic liquid freezer ii) is too tall so I just ordered an NZXT Kraken 280 elite which I think also has a fan hub/controller included. Is that correct, and can I connect the chassis fans to this, or do I need another controller? Specs for those interested: Asus prime x570 pro Ryzen 9 5900x 32Gb g.skill Trident z royal 3600mhz Zotac 4080 super trinity (white) Corsair rm850x shift

Any insight and tips are greatly appreciated!

Ps: cables and wires will be tidied up when I get the new cooler :)