I have a mini reef that I am setting up in a ten gallon tank (hence MINI reef). I built a stand, ordered in a bunch of parts, and finally got the tank set up. I picked up a nice large branch of Tonga rock. (For those who dont know, Tonga branch is considered to be one of the top types of live rock and is typically the only thing I will use, but has become exceedingly expensive in the past decade.)
Unfortunately or fortunately depending on your point of view, the rock is not cured which means that it was just collected. On the good side, you get more wild critters this way (such as snails, shrimps, crabs, sponges, coral, etc. - I have only found some macro algae and a snail.) On the bad side, there is always die off from the stuff being collected. This leads to spikes in amonia, nitrates, nitrites, messes with your Ph, and can kill fish.
Personally, I prefer non cured rock as I have gotten tons of starfish, anenomes, crabs, shrimp, snails, limpets, cowries, and other critters. Then again, I used to order the stuff in bulk from the distributor...this time Iit went through 2 people before I received it. (Wholesaler and retailer)
As you can see, its a large piece but I may add a few other branches later. In two weeks or so, I can add fish and corals. As it progresses I will post more pics.