Acrylic tank care?

[MsBeanCtr]

My newest sw tank is made of acrylic. I noticed that I'm get some nice pinkish corraline inside the tank. How do I get it off the tank without scratching the heck out of it? Any tips?

 

[Innovator]

Proscraper (make sure the edges are cleanly manufactured before use) or acrylic pad

 

[ccCapt]

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