Coralline algae question

[cam78]

I see many large tanks that don't have any coralline algae on the glass at all. How do they do this? Are they scraping this all the time? Is there a secret to keeping it off the glass? My wife and I are going to get a 180 gallon soon but she refuses to have any coralline on the glass. Suggestions?

 

[vicegrip]

If it will be a fish only tank less light and less calcium will keep it from growing much.
coral tank will take scraping almost everyday for coralline free glass.

 

[earlybird]

My coraline is growing everywhere except on my glass. I magfloat my glass every day which I believe is the reason I don't have it on my glass.