Stop peeing in your loop

There is no fuzion block in that loop. There is, however, an Apogee GTX block which has an aluminum top BTW. However any corrosion won't turn the water that color. *edit* nevermind, I was thinking of the CPU block, I see you are referring to the Asus NB block.

Primochill PC pure fluid? Wonder what chemical properties it has. I'd refill with distilled and biocide only, although you may want something for anti-corrosion because of the Apogee GTX.