My current tank is 1.2 meter and is running for 7 months now. AM Blue 5000 skimmer, AM kalk Stirrer, Am Carben Reactor. Uplift is OR and pawer heads are Tunze. I have just converted my lights from 8 X 28 w T5 to 8 X 54 w T5's. Here are 2 photos one fom April and the other now.