Last year I went out and bought a 55 gal tank from a local LFS. When I bought it he told me that all I needed was an Filter which I bought (Marineland Emperor 400) A heater some crushed coral. and maybe some LR. I did all he said cycled the tank then bought a yellow tang, HumaHuma, And couple of damsel, and one other fish that I can not remember at this time. Within a month everything I had bought was dead. I could not figure out what had happened my water was where it should of been. So I just gave up. Could not afford to keep buying fish and having them dying. Just this week I wanted to get back into it. So I have been doing alot of reading wanting to do it right this time. I have learned that you need alot more then what my local LFS advised me of the 1st time. My only problem is he is the only LFS in my city. But with the help I have got from the forum I will be on the right track I hope. Thanks For all the help.