Are all these colors and variations really just tons of different wild colonies that people culture over time. Is it grafting like I've seen with trees? Or do some places have the ability to have the acros actually sexually reproduce and the combinations of sperm/eggs create new colors and patterns? Not really able to find a lot of info on the process that lots of coral places use to "create" (which might be just name a new wild and frag over and over until it's aquacultured) new acropora