It's on one piece of rock which I removed, there are black spots and one tiny white fuzz. According too google image searches it seems to be fungusneed full tank shot pics first, that's usually all we need to fix it. we are mostly dealing with algae and bacterial mat variations cant wait to see pics.
I can't really tell from the pics as it looks more dark green on my phone, maybe some algae. Does it scrape off?
Sorry for the out of focus picture! But i googled and it looks like that above ^
Also what would explain the dark "black" spots on the live rock?
My entire tank is base rock and I used this as a seeder