GREEN ON ROCK! NOT ALGAUE

[Garuf]

f. fontanus i would say is the most likely to take that form but it will always be a battle to keep it in that form as it will always grow.

 

[mr. luke]

How about good old marimo?
Would take about 3 months to grow over any thread but the3 lowest maitanence ever and would give you a tight cushion

 

[chilled84]

How about good old marimo?
Would take about 3 months to grow over any thread but the3 lowest maitanence ever and would give you a tight cushion

Isnt marimo an algaue form??

 

[mr. luke]

Yes i supose so technically.
I assumed you meant invasive algae not algae as a whole