i was thinking about getting 50 pounds from marco rock them but it says they dont have that much in stock so now im not cause i need it asap. liverockusa was amazing rock. nothing in terms of girth for the rocks, kinda thin but i had coral all over it alive on delivery. i had a full size brain coral attached to the rock the size of my palm, bright green and it looked awesome! has a bunch or weird corals on it that no one on here could identify. like those big red things that look like red peppers, and a few white tenticle coral things that looks like clear sun pylops. i had some fake looking zoo on it, alot of calerpa, and much much more! onlyyyyyy downfall was it has ALOT of weird looking anemones that i still cant identify. and my buddy got the same rock. he still today has a .... started around 1/2 inch and today about 2 inch mantis shrimp we found going crazy on his fish and inverts. oh well. still worth it liverock usa 1+++ 50 pounds for 200 bucks. coraline all over it, live corals and everything else i said...cant beat it!