Another Algae ID Please!

theishkid · Dec 5, 2025

Can someone please identify the algae on this photo from shutterstock. I was trying to find algae that resembled mine and found this picture but not exactly sure what it is. I have splotches of this on my rocks. Some of them have small air bubbles in it. It's easy to scrap off with a toothbrush but comes right back. It's not all over everything but there are quite a few small spots with it now.

vetteguy53081 · Dec 5, 2025

theishkid said:
Can someone please identify the algae on this photo from shutterstock. I was trying to find algae that resembled mine and found this picture but not exactly sure what it is. I have splotches of this on my rocks. Some of them have small air bubbles in it. It's easy to scrap off with a toothbrush but comes right back. It's not all over everything but there are quite a few small spots with it now.

Pic a little too close up but looks to be surface or turf algae . . . a delight for pitho crabs and carribean Blue leg hermits

theishkid · Dec 5, 2025

It's definitely a little more slimy than turf. I took some pictures of my tank but they are much lower quality. It's also growing in random places like underneath a rock in the shade and on top.

EnterName · Dec 7, 2025

theishkid said:
It's definitely a little more slimy than turf. I took some pictures of my tank but they are much lower quality. It's also growing in random places like underneath a rock in the shade and on top.

Green cyano maybe? A microscope image (400x magnification) would probably help if you can get your hands on one.