So that's Earl.Looks awesome
That mushroom rock is exactly what i was talkin ab earlier. any idea the name and how long it took to cover it
This is closer Earl
Direct answer, It's unknown.
More information: two of these mushrooms were put in the 120 I purchased between 4 and 6 years ago from a private collection.
Between that point and me buying the tank in February, They multiplied to north of 100 constituting a colony on every rock that received light and left behind coral skeletons that filled a gallon pale in their wakes.