It is flakeing off right now thinking about taking a plastic scraper to is carefully. But I will try the vinegar trick.
Hey your close make be when everything is all said and done swing by and take a look. And one word when your ready to upgrade " Craigslist " I won't tell unless you really want to know but this tank was CHEAP!
Next time im in the tampa area I would love to check it out man! I know to well of the craiglist deals. I got my 120 oceanic tech tank, Coralife aqualight pro with 2 X 250 MH, and a my reef creations sump for a ridiculus price. It was awesome