Maybe Green Spot Algae...not sure.
Read a razor blade can do the job...?
At that rate it will take me hours to scrape it all away. ;=;
Stuff doesn't grow, but stays green. Doesn't have spots on plants.
I've tried sponge, plastic scraper, and fingers with textured gloves, but it's still there.
Pretty picture... Feel free to share your algae pictures lol
It's a pain to get the focus past these bitty spots.
Nonetheless, that Puntius Tetrazona looks mighty stunning.