Hi,
Use Aquasuite to set up a controller to manage your fans.
You will need at least one temperature sensor installed in your coolong loop somewhere to give you the temperature of your coolant that you can use as an output on your fan controller curve.
AIDA64 is only necessary if you want to monitor your hardware temps such as GPU or CPU core via Aquasuite. Some people may use those temps as outputs for controllers but it is not essential.