I'm just bursting with questions tonight.
Some of my live rock has a patches of a fairly smooth pink areas... some overlaps with some blue or light purple areas.
First off - what is it? Similar to coraline alagae (like the dark purple that covers my older live Fiji rock)?
Second question: Why is it starting to turn white? All of the new rock has a slightly whithish/grayish sandy appearance on it and some parts are getting whiter than others. I was wondering if this is living stuff that is croaking as time goes on...