Red algae??

Hey 3 reef. ive had my tank for over a year now. i have a good sump system wit a good skimmer. Trust me i spare no expence when it comes to my tank. My question is i cant seam to shake the red algae. It always starts in the same area right next to my tube anenimes, it never really spreads to far past the area. but almost always comes back. I change my water every two week on the dot and never miss a cleaning. any ideas on a solution???
Flickr: Gangusmich's Photostream

 

Are you talking about a cyanoalgae or a red bushy algae? Post your tank paramaters.