Hi. The good thing about the Red Sea reefers is that unless you go deluxe, you pretty much just get a tank, cabinet and sump etc.. (I think the delux might only come with the lights) and you then have a lot of different possibilities and choices for the actual equipment. I’m in the process of getting everything together to build up a reefer 250. Like the other guys, a lot of research and try and buy everything once rather than upgrading to better a short while after :)