I finally discovered how to slow my coralline growth down.
 
It's been a week and a half since I last scraped my front glass and there are only a few spots of pink today. After checking my alk and calcium levels I found out why 

 . Alk 6dkh and calcium at 325...ooops 
 
I blame it all on Snappy 

 the frags I got from him are starting to grow like gangbusters (actually everything else is too but its still Gregs fault 

 )
 
Well back to fiddling with my cal reactor again
 
*edit* I should point out here for the newbies that I hate coralline algae and slowing its growth would be a wonderful thing but not by dropping alk and calcium levels that low