I have purchased 2 boxes from petwharehouse.com of the 45lb rock and here's what I recieved:
2 boxes of encrusted rock, with a very nice smell
. Used this to cycle my tank which worked very well-all test kits went off the scales and cycle was reduced to 3 weeks. After the cycle was completed, small fanworms where the first to show up. Now, almost 5 mths later, many tunicates (sea squirts), some aiptasia
, many fanworms
, a hair algae bloom that is dissapating and being replaced by several macroalgaes
, some encrusted with red and purple coralline, many peanut worms, some bristles, many tiny snails and the other small swimming (dinoflaggets I believe) organisms. The important thing is you will have a wait out before these things will appear, and will need to recure your rock if your not cycling it in the main tank. I'm very satisfied with the final results thus far. (BTW if you see any sponges on the rock, remove them, they'll only polute the tank as they're already dead- live rock not shipped submerged will not have any live sponges on it.)