Sorry crypt, I probably owed you a better explanation. Yep T as it correct, there are many things that are perfectly fine to collect (with a saltwater fishing license), however live rock is illegal to take. There are several aquaculture live rock programs that take land collected rock, dump it into the ocean for a few months to turn back live. Permits to harvest live rock are extremely rare, and I don't believe any have been handed out in the last several years. As to how SWF sells tons of rock every year, look where most of the live rock came from, Tonga, Fiji, etc.