I was always interested in having a saltwater tank, and the show Tanked gave me the push to try it. I quickly learned that its not as simple as they show. I just recently lost a couple fish and a coral and that part sucks, but the process of finding out why things happen in the tank will make you a better keeper for your tank. I made myself a log that i fill out daily, i write down any parameters i tested, any supplements i added to the tank. I note if all my fish and corals are out and normal, and most importantly I just watch things for a few minutes to write down any changes i notice, anything new or different. It has proved a valuable tool because if there's one thing i have noticed in this hobby its that what you see in your tank today, is the result of things a few day before. this log allows me to look back in time to help figure out any changes. Stick with it, learn from your mistakes and enjoy the tank.