I have had my 75 gallon tank set-up for over 20 years. However I had three moves so I did lose reef life each time I moved and had a few bad fish over the year infect my tank causing life stock to be replenished. As time has passed and better lighting, equipment, and techniques have improved our hobby I continually enjoy learning about my tank. I will post a picture very soon. Great topic. Also, if I did not have my reef tank set up in my great room or the room that I spend most of my time I bet I may have stopped the hobby. I am so glad I remain an avid reefer.