I broke my arm, got married, and had a baby girl all in the last year. My poor 24g nano has been neglected! It got angry with me, or was that my wife, for letting the tank get so well...whats the word...we will say grown.
http://i19.photobucket.com/albums/b169/Photo_John/1psd.jpg
http://i19.photobucket.com/albums/b169/Photo_John/2.jpg
As you can see I have no problem growing coraline algae! I tried getting it off with a mag float, fat chance. A scrubbing sponge, it laughed! A butter knife, capable but time consuming. My solution, a razor blade!
http://i19.photobucket.com/albums/b169/Photo_John/3.jpg
This little beauty was cheap at walmart and wow did it power through the coraline. I have not noticed any scratches as of yet, but then its been nice just being able to see my fish :mrgreen:

I have seen the rock!

LOL, wow, that's a lot of coraline! Will time permit you to take care of the tank again? I know with kids, it might be another 18 years before you can devote serious time to it again ;)

good question lol

anything still alive in there??!!?? :D

two clowns, a coral goby, a yellow watchamn, a pistol shrimp, and clean up crew.

I tore my tanks down when I was pregnant and sat them back up 18 years later!