I have man-made white concrete-type dead rock that I put in my aquarium when I first set it up. I also added "dead" live rock (purple in color) that I was told would seed my white rock. It has been 4 months since my initial set-up.
I noticed today that my white rock has a coating of brownish-purplish with some green in it. Is this the rocks becoming live? or is it algae? And if it is algae, is that good or bad?
Thank you for any help!
I noticed today that my white rock has a coating of brownish-purplish with some green in it. Is this the rocks becoming live? or is it algae? And if it is algae, is that good or bad?
Thank you for any help!