650 litre marine tank with sump, pump, 2 wave makers.lights, Heater. We have extra sump tanks. 3 fish and some live rock there's a small starfish in there as well. We have a skimmer a curve 6. We also have an overflow tank as well. Filter system is built into the sides of the tank. If you want the water you will have to bring something to put it in we have a few gallon bottles. £600 Ono no silly offers please.