hey there guys, I keep seeing all these waterblocks with clear tops so you can "see" the water flow, but i think it'd be pretty hard to see, since it's all just colored water, theres no difference between this drop and that drop. So i was wondering, since oil and water don't mix, if you could find some colored oil and put it in the loop, it would probably run through fine, and may give a lava-lamp effect to the water inside, but would this decrease the cooling efficiency? I also think it may help the pump a little, having a lubricant running through it. If anyone has ever seen something like this or heard of it, could you leave some input?