Black looking algae?

[Rosiepink89]

I see plenty of algae growing in my tank in a variety of colors some looks black? I was just wondering if there was any kind of algae that's not good to have in your tank? Everything seems to be going great

[Vorteil]

Post a pic of it

[Rosiepink89]

Not sure why I didn't think to do that in the first place lol
I can't tell if it's on other surfaces but I can see it on some of the calcium pebbles like this. It's only on a few of them

[Rosiepink89]

I circled it so you could see which one in taking about in this pic

[Vorteil]

Is that the only area it's in? Do it look slimy? I was think maybe cyanobacteria?

[Rosiepink89]

Is that the only area it's in? Do it look slimy? I was think maybe cyanobacteria?

There are like 3 other pebbles it's on in different areas of the tank. Doesn't look slimy to me.

[Mustafa]

Is it still there? Yes, it could be some kind of algal/bacterial growth. They come in all kinds of colors.

[Rosiepink89]

Yes. At first it seemed to be spreading but now it's not. Everything has been stable for a bit now so I'm assuming it's harmless.