Hi all: Gresham asked me for input here.
Yes, there was a coral farm in Dominica that ha planned to grow Indonesian corals to supplement their Caribbean farming operation. I have an article at reefkeeping.com in the 2002 index on the subject.
We were sent there to take a look at the situation and evaluate potential ecological impacts of those corals and determine sustainability of Caribbean farming. The Indonesian corals were a bad plan, and adequate treatment did not exist, although we
saw no evidence of any movement of those species to the local coastal area - fortunately.
It is an extraordinarily bad idea to use non-native species in culture efforts. You can have a place that is ideally set-up, and things still happen. Equipment breaks, storms destroy facilities, funding problems, disgruntled employees, etc. It's just not worth the risk, although invasives and non-natives are virtually everywhere in this global society. But, in almost all cases, its a bad thing, and no sense in making it worse through negligent activities. Furthermore, in the case of reef species, I am pretty comfortable saying that each locatio certaily has enough natural resources to condentrate on a plethora of beautiful and commercially viable local species - why even consider doing otherwise. If one truly wants to mariculture a specific species, then taking the effort to do it right, even if it entails moving locations, should be a relatively minor hurdle for someone with that goal.
I confess that I have entertained the thought that some fast growing tolerant I-P species liek P. dam might be "just the thing" for Caribbean systems, but it's just a thought. I would never even remotely consider the idea that this should actually happen.