Algae Scraper with a bit of a curve in it?

[b4tn]

So I set up a biocube on my desk at work My first acrylic reef and its driving me nuts! The only plastic scraper I have is flat and I have coraline and all types of other algae building up on the glass. The scraper I have works but I have to hit it with the edge so it takes forever. Is there anyone out there that makes a slightly curved plastic scraper for people with bow front type aquariums?

 

[77railer]

Wouldn't going sideways eliminate the need for a curved scraper?

 

[b4tn]

That's an option but I'm trying to avoid putting my hands in the water.