Ya honestly have to go to a really good lfs to get actual good live rock that’s not colored purple and some times still hard to get that and usually have to pay and arm and a leg. Best way is honestly getting it from someone on marketplace that is either breaking there tank down or they just sell it in general. But then you don’t know what hat hitch hikers you might get. Rather just season my own. But the coraline will come just takes time you might get a spec or two just from some frags, snails, or hermits you add to your tank. I’m getting a 3rd fish this Friday most likely and probably some gsp, Xenia, and mushrooms if I see those start to thrive right away will get some other stuff.