I actually have the opposite - north Atlantic shelf rock in a tropical set up. The coralline is pink and white. The Aerobic bacteria is the same however grows slower in cooler temps. The anaerobic bacteria ( denitrifying ) is totally different. Currently it is unknown how many strains exist basically so many they are uncountable. Each strain will grow in an A specific environment including cool water tanks. This b+b will grow thru cycling and maturity not by adding tropical cycled rock. How it occurs is light, water, + protein/ammino acids - out of this primordial ooze comes bacterial life.
My whole tank is not just Atlantic shelf but a mix from all over the world in order to collect as many different colors of coralline as possible. Currently I have - yellow, white, various shades of pink, lime green, red/maroon, and of course purple. For a short period of time I had a small patch of blue however it moved on to greener pastures.