If anemones is what you want you will have to know that some travel around the tank and anything that they touch is stung. they also will eat fish if given the chance. lighting for some must be very intense and the currents have to be to their liking. some attach to rocks, and some dig into the substrait. if the latter is proposed the right substrait needs to be provided at the correct depth. so I would recommend you read all you can on anemones before you decide to go that way as it will to some extent limit the corals and fish you can have in the same system and be safe long term. For the system equipment you will need a stable marine system, good current flow, bright lighting, protien skimmer, and I would recommend a under cabinet sump for your heaters etc. so you have your work cut out. read the helpful articles they will give you a ton of information and help you get to a level to make the right decisions. once your direction is definitely chosen and you have specific questions you need assistance with let us know and we will help as much as we can. good luck on your project.