I rarely fragged anything. When I did it was because I felt like fragging something not because someone requested a piece of a coral. It had nothing to do with worrying about harming the coral.

I spoken with some in the industry about this very topic. Some feel that it's fine since the hobbyist gets a cheap (from their perspective) coral and the store gets to make more money on a coral by chopping it up. Others thought it was unethical from a retail perspective since you are taking a coral that cost you $20 and instead of selling it for $40-$60 (the standard industry margin) you are chopping it up into say 10 pieces and selling them for $10-15 a piece which is a much higher margin.

I don't have a problem with stores that do it or stores that don't. The reason I generally didn't do it was quite honestly because I didn't feel like it.