Just set up my SW tank about a month ago. Things are looking good so far. I've noticed what appears to be a white powder or sediment on my live rock. Any thoughts on what this might be and is it something I need to something about?
Thanks Philip
If you are able to blow it off with a powerhead it may just be a build-up of detrious.
If it's harder and seems like part of the rock and will not blow off it may be bleached out coraline algea.
