sorry, didnt mean to make it sound that way. i agree, you can get great colors on most sps without running ultra low nutrient, but there are a few sps that wont get their brightest colors if they have high populations of zooxanthellae in their tissue - especially bright yellow (which will look more green in anything but ULN systems) and bright pink/red (which will look more rusty brown in ULN systems). for example, i have a piece of john's red planet that was screaming pink in his tank, but in my tank (high nutrient) it has lost that bright color.

Quote Originally Posted by stangchris View Post
my sps color is nice but i havent been able to keep every piece ive bought colored up, just trial and error