Originally Posted by Nu-Nu the eel
Reef rocks has great sand and rocks. There was (i dont know if its still going) a deal where if you got a 50lb box of rock you would get a free 40lb bag of sand!!
I am expecting about 100 pounds of rock from them. Got a couple boxes of sand today.
If I remember right you only need to buy 25 pounds to get the free sand. You have to pay about 15 dollars for shipping though. By far the cheapest dry rock i've found.
If you want something different, check out bulkreefsupply. They have tonga branch and different types of dry rock. More expensive though. I am expecting about another 80 pounds from them.