IPU sells them for sure
This is a discussion on Getting rid of Green spot algae within the Planted Tank Specific forums, part of the Aquarium Related Chat category; IPU sells them for sure...
Do otto get rid of green algae on glass?
they definately do eat it off of wood and plants more often than the glass itself. But yea they do, just no enough to counter an imbalance or if its quite hard (large dark green spots, nerites do well with this)