Because these animals (corals) are not likely sexually reproducing once they are in an aquarium environment, the 'offspring' or 'growth' would actually be genetically identical to the parent colony making the terminology 'F1 and F2' generations inaccurate since this terminology is used solely to describe sexually reproduced offspring .
Someone harvests a coral from the ocean, someone obtains that coral sticks it in their aquarium, either it lives and grows or it dies, the owner of that coral then has the chance to grow it and sell it which is ultimately good as that will hopefully decrease pressure on coral reefs. I guess we should just hope that the individual that obtains a wild coral gives it plenty of time (however long that may be is the question!) to acclimate it to the aquarium environment before selling the coral so they first, know if the wild coral’s needs can be met so it can grow and thrive in a closed system and second, what the coral’s phenotype will be once it is acclimated to their system. But once in captivity a coral is captive. If it does well in captivity then it’s asexually reproduced offspring or buds should do well in the same environment because they are identical to the parent coral. This is the case for a coral that has been propagated one time or a thousand times as it is unlikely genetic changes have occurred within one coral and it's asexually reproduced offspring in the short amount of time, evolutionarily speaking, that people have been keeping corals in captivity.
I think it is funny that the F1, F2, etc. debate has happened “a billion times†on here considering there is no such thing as an F1, F2 generation in asexually reproducing corals. If the debate is about sexually reproducing corals then there is a real discussion to be had.
My sole purpose in writing this post is to point out that we need to be careful using the terminology F1 and F2 when speaking about asexually reproduced populations. Sorry for getting off topic from the original intent of this thread.