right i have a rio 180 which i want to change to a marine tank but i have not got a clue how to set one up. I seen a ad on ebay which was a rio 180 marine tank so i wrote every thing down which he had but where does every thing go how do you fix it all together ect ect. Has anyone got a rio 180 set as a marine tank can you send me some pics of your set up and list all the parts please if any can someone can help i will be very gratful cheers