How To Remove Coraline Algae From Glass/Acrylic

[Danireef13699]

I have a 32/gal Biocube that has completely exploded with coraline. I would like some advice on how to safely remove it from the acrylic without scratching it.

 

[Jasc]

I have a 32/gal Biocube that has completely exploded with coraline. I would like some advice on how to safely remove it from the acrylic without scratching it.

Algae scraper? Not magnetic. Gently scrape it of it one scrape at a time.