Since I started to learn about corals, I’ve had only one tank. It has lasted for over two years and still in pretty good condition (not very good, but at least stable). During the years the tank has changed a lot as I learnt about more and more about corals and marine creatures. They’re definitely the most interesting things I’ve ever learnt! I wish to learn more from R2R, especially the basic theories about aquarium systems from all over the world!