Algae identification

[ccronje]

Can anyone perhaps help identify these types of algae are that I have on my driftwood?

 

[Colin_T]

top picture just looks like green algae and is nothing to worry about. I think it looks nice, adds some green to the tank.

bottom picture is hard to tell, might be blue green algae (Cyanobacter bacteria) or something else. If it wipes off easily and smells musty, then it's Cyanobacteria.