I have done lots of reading on seeding ones tank with Coralline Algae. I see there are people that love it in their reef tank. People that hate it. I see there are different colors from different strains.
Finally i see once it is established people have to clean it off their glass and equipment.

I know you can buy a piece of live rock with it on it. You do however run a risk of introducing other unwanted with

I see there is a place in the USA that sells “safe established plates of differnt strain / colors but they do not ship to canada.

If i were to use the scraping of rock to seed a new tank with all dry rock, does anyone know where one can buy something well established and safe to scrape from? All i can seem to find is uncured live rock.

Lol someone should package their tank scrapings of Coralline Algae to sell.