Farming Acan Corals

[chanda17]

Need some advice on farming acans. I learned it will grow faster when it has a flat surface to grow on, however, is it's skeleton encrusting? I have a bare bottom tank, if I let it grow on the glass, it won't be able to take it out and frag it?

What is the best way to let it grow but yet will be easy to take it out to be fragged

thanks!