This is a complete setup. Everything you need to start a reef tank or fresh water. Includes, 40 gallon aquarium, heater, protien skimmer (rated for 100 gallon tank), cascade marlin canister filter with built in uv sterilizer (rated for 75 gallon tank), full length LED lighting. Lighting is current IC pro(over $300 alone). It has fully adjustable colors and timer. It runs moonlight, sunrise/sunset on its own around what you schedule as the daylight hours. Also has partly cloudy, scattered storm and full thunderstorm mode. The controller for the lights will run up to 2 power heads (which i do not have) as well. If you get the power heads then it will change the current in the water through different weather patterns. Really great setup here, I have over $500 invested here. Asking $200 or best offer.