The Aquasystem™ is an aquarium that contains a state of the art internal wet/dry filtration system. Being highly effective in the removal of toxins and contaminates makes the Aquasystem™ the natural choice for freshwater, saltwater and reef setups. The Aquasystem™ features a hidden chamber for your heater and protein skimmer (heater and skimmer sold seperately). Wet/dry chamber, drip tray, mechanical pre-filter and pump with return line are Included. No hoses or tubes hang off the back. Everything is internal! Simply add water, heater, lights and plug the system in!