Mineral, Corrosion, and growing stuff maybe?

[A_Noob]

Yes! Thanks PETRA!, sorry for my crappy pictures, I have bad lighting here and there hasn't been a sunny day here so I can get good photos. That is EXACTLY what my corrosion looks like on my GTX. It has pittings and is starting to crack (I'm afraid it might crack into the O-Ring and start leaking). People keep telling it's not corrosion =(. But thanks, that is what is happening to my block. Is there anything I can do to prevent further corrosion? I finished disassembling my parts and flushed everything out with vinegar. Oh, and if people wanted to know, no I didn't use tap water, I used distilled water.

Update:
I found something cool: http://www.jab-tech.com/Apogee-GTX-C...g-pr-3891.html
maybe my corrosion is solved? =/ more money to spend, I was almost about to drop some dollars on D-Tek fusion, I have no doubt that my block will eventually crack, or better yet...crumble. First bad experience with Swiftech X_X