I have 3 of these storage bins that would hold all the sand, and I would only have a few inches of sand in each , so that way it won’t starve for oxygen. What do you think of that? Versus leaving it in… Cause if I leave it in won’t it have die off ? Also what is the minimum time for the silicone to be in there before I put the water back in ? Thanks Bob. Sea Sand Bed – South Africa 3/30/05 Hi guys & girls fantastic site!! I have a question: in about a month’s time I am going on holiday to our eastern coast of South Africa (Durban). I currently have a 400litre tank with a medium depth sand bed consisting of crushed coral and aragonite. I was wondering if I can bring back some sea sand back from the coast to give my live sand a boost. The sand by our coast consists mostly of just plain sea sand and crushed shells. Can I use this, isn’t it too fine