Hello. My name is Tom. I live in Columbia, MO and am going to take a second shot at setting up a saltwater aquarium. First try left me with only a horseshoe crab in my tank for about 8 months followed by a cleaning and a switch to freshwater. An outbreak of algae while I was gone one weekend left me with no fish and one very disgusting tank. I cleaned as much out as I could and when asked, a LFS owner said adding some salt to the tank would help keep it from coming back. So I purchased some Mollies and a couple of other small cheap fish I began slowly adding salt to each water change and top off. I recently decided since my Salinity was slowly going in an upward direction maybe now would be a great time to take a second shot at going for a Marine tank. Last night my boys and I dipped the fish out into a bowl and removed nearly all the river rock that was the substrate. We let the filter run for several hours to clean any particles we stirred up removing the rock and tonight we will use the siphon to remove any leftovers from the bottom. Going to get RO water from the LFS to replace what we siphoned out and try to get the tank water stable before replacing the rocks with Living Sand. :sfish: