I am setting up a new tank and have heard yes it's ok to use beach sand and no it's not. My question is would it be ok it go to the ocean and I was going to sift through the top layers out in the water and get more of a small shell substrate. Is that ok to use and I didn't want to wash it or boil it because I want to keep it "live" also was planning on using some sand out of it as well. I know it can be polluted and you want to go farther out but can I use it and treat it of needed for anything bad? It is the initial setup so I will have time to let it cycle well before I add coral and fish.


