Sorry for taking so long to answer. I have used this live sand on three different tanks and every time have had clams hatch. Once in awhile a dead clam shell will show up now, some of them up to three inches long. I've also used the CaribSea Seaflor Special Grade sand. If I was going to start a new tank I would put in 3 inches of Seaflor sand and another 2 inches of live sand on top. Drs F&S is a great place to order it and get free shipping, too.
Marine Substrates: CaribSea Ocean Direct Caribbean Live Sand at Foster & Smith Aquatics
Hey Mike,
I was reading your posts on the DSB vs SSB forum. Since you have so much experience and success with them could you answer a few questions for me? I will be utilizing a 5 to 6" DSB with the sand you advised. My LFS has both in stock at a competitive price

. What type of critters should I stock to help promote or maintain the DSB? I know you don't want to disturb the DSB so what shouldn't be added and what should? I also was told the entire DSB has to have light contact but what about the parts that the live rock cover? What type of flow is usually successful and do you think 2-MP10's will be sufficient in a 93 cube including the return? Thanks