I have installed ULTRA Bright 1 Watt UV LED into the Water Tank.
Please ignore the fact that this system is using 2 different pairs of memory which is a NO NO!. It was used for testing some DIMMs in heavy GAMING LOADS.
The Following video show the Lighting Effect Changing as it uses a 1 Watt TRI COLOUR LED, I also the water Jetting the coolant to make a tornado.. As CPU LOAD increases it looks great
a few air bubbles will flow but I have never seen a temperature rise due to this!