OMG, I honestly figured this stuff was BD until I didn't do more than change water for a month...
After a month since I last cleaned my glass, changing water when cloudy and using Rez-Block.<br />I cleaned the two daily heaviest used pieces over to the sick to clean (Kryptonite Kleaner is THE BEST for that) I was AMAZED at the difference a few drops of this made!!!<br /><br />Really, only things that I didn't expect to stay clean, is all that got dirty.<br /><br />Other Tha  buildup on one area, just needed a good HOT water rinse and was sparkling! I'm THRILLED!
Rating: 5 stars