is there any reason that my live rock (once shades of purple and green), is turning a golden brownish color???
is there any reason that my live rock (once shades of purple and green), is turning a golden brownish color???
Have you checked your lighting recently (age and intensity)? Did you already go through your diatom explosion?
Looks like diatoms to me. They are typical in a newly cycled tank. How is your flow? And on the lights if bulbs aren't replaced on a good schedule they can cause problems like this.