Both great points and I agree with both of you ... my point is more to how he implied success,,, this is an exact quote from the Article...."I would suggest starting with an acropora that is yellow. If you can get it to say yellow for several months, you should be ready for something else."

Read more: http://reefbuilders.com/2008/09/03/g...#ixzz1oTIj5YKY

Seems to suggest that yellow is the baseline color.. if you can master that you are ready to try improving other colors... IMO maintaining yellow is one of the more difficult colors