Tank Cleaning

[bfin3]

I have an acrylic tank that was set up for freshwater that I am converting to a reef. Right at the end of it's time as freshwater I had an explosion of algae that pretty much covered every inch of the tank. My acrylic safe mag float wouldn't scrape anything off and actually left some scratches. Right now I am thinking about filling the tank with a reasonably strong vinegar solution and seeing if that makes it easier to clean off. Any suggestions for safely removing these algae spots would be much appreciated.

[ColtonMeng]

Why not just drain the tank and sponge clean it? the rough side of a kitchen sponge shouldn't scratch up the acrylic, and it should pull off any algae.

[reefpro21]

Not sure with acrylic, but I used veniger to clean my tank before and algae comes off just by touching it, also it was a glass aquarium