Removing Coralline

[likwid]

Originally Posted by rocketlily

I just purchased one of these "Kent Marine Pro Scraper L (Glass Only) - 35" Long". It has an aluminum blade and does an excellent job of removing the coraline from the back glass.

Yup, tried it. It works well on the glass, however, my tank is a JBJ NanoCube so the back wall is plastic. I have tried my hardest to scrape it off with the Kent Scraper, but it just doesnt work on that back wall.