Not trying to be negative, but as with any hobby, it can become an addiction. When I started my tank, I knew the look I was going for and what animals to keep. That way, I kept always trying to get the corals to fill in the tank so I could just cruise doing maintenance, and enjoying it. There is where I am now, I had patience to wait and only buy corals I really looked for and were to my standards. If you get impulsive with buying corals that you like, you will be spending money every time you go to the store. Also I aimed to grab the best equip I could for the tank. Good skimmer, lights and pumps are a must. If you are not happy with those, you will buy a diff system everytime they come out with a newer version. Some corals are very addicting....chalices, scolys, zoas, sps...we gotta be very careful to know when is the time to stop and be happy with what you have. I spend 50 if that every two weeks now only buying salt, frozen foods, filter socks...