Should I scrape it

[DraggingTail]

I scraped this once and it has filled back in but I have noticed any starting anywhere.

Do you think scraping it again, running it thru puree in blender and dosing it works to seed corraline?

 

[saltyfilmfolks]

I’d leave it be.
Looks like it’s coming in on the rock behind it.

 

[Sailingeric]

You will have none and then one day it is everywhere. Given it time