Thanks for the tip. I gave it a go but I think it is a lost cause... The guy who gave us the tank had told us that it "had a bit of algae". When we arrived at his house we couldn't see through the glass it was so caked with black, purple, and green algae. We still took it though. The filters, powerheads, and protein
skimmer were so clogged with algae that they weren't salvageable. The hoods and lighting set up was so caked with salt and it was all in the electrical parts that I didn't feel safe plugging it in. I put the bleach in the tank and started scrubbing away the algae. After the algae was gone we noticed that the glass was covered with foggy residue and there were tons of tiny scratches all over the glass.
After that we looked at getting the parts for everything we needed to replace and it came out to $175ish....we could get a 55g tank set up with everything for $201 brand new at wal-mart.
So yeah....I don't think it is worth saving at this point. I guess that's what you get when you get something for free....
I attached a picture so you can see what I am talking about. I have never seen anything so filthy in my life. The guy said there were like 3 or 4 fish. We only found 1 and "part" of another that was floating on top...Just incredible...