Quick summary,
The GBTA came off the rock voluntarily as I lifted the rock out of the water...
RBTA1 was stuck in a 3" deep hole, barely large enough to put my finger in, so after some screwdriver prying and a maxi jet blowing into the hole, it released.
RBTA2 was pried off with my fingernails.
The GBTA was cut into 2 Quarters and 1 half, both RBTAs were just cut in halves.
All were put into a propagation basket and seem to be doing fine, I will post updates regularly...