I am looking to start a saltwater aquarium. I have had a freshwater aquarium but not salt, which looks more complicated—looking at the Innovative Marine SR 80. It may be easier to use than having a sump underneath and a have leak disaster. I am still looking, though. I live in south Tampa Bay and was thinking of using some live sand and a couple of rocks to populate several live dead rocks from my seawall that I have soaked in bleach water. I don't know if sand and a rock or two from the bay would be safe because of pollution, especially after the hurricanes and floods. I can also get seawater from offshore with our boat when going 60 miles offshore. Do you have any opinions on that?