The issue is not if it is true or not, the issue is after how much time you have been mantaining blastomussa under led lightinh without color changes. Of course i have maintainted blastos for three months without problems but after six months the animal is completely different the reds are disapearing and the greens are pale....
But of course you are right there are many other parameters to take into account.
The same happens with lobos, acans, cynarina, trachis, echinos, oxipora, scolymia, etc.
When I say leds I men the normal ones blue and white not the very sophisticated arrangements under test that we can also see everywhere
I will always accept other views, I am an open person.