:? Hi! I am brand new to salt water. I have successfully had fresh water and brackish for years, but my 12 year old son asked for salt water for his birthday, so here I go. I have a 44 gallon pentagon tank. My neighbor (who does salt water) has reverse osmosis and filled my tank for me. I asked him if I should rinse the sand in water before putting it in my tank and he said NO. Well, what a mess!!!! There was "dust" everywhere in the water and took 2 days to clear with my pump/filter; however, I know a lot of this has settled at the bottom. If I move a plant I see it swirling. Will this hurt any fish I add? Do I need to start from scratch and wash this sand or will it eventually be filtered out? I really appreciate any help. I plan to start with a couple of clownfish only. Thanks!!!!!