Hey guys! I have a 40 breeder that I am planning to set up soon and have almost all the equipment ready. There is a few things I was unsure of to get at first, but would add them a few months in to a year. Many people said a return pump is necessary but some said you could have a healthy tank without it. I was unsure of getting a sump and a skimmer. I know once you get coral a skimmer is necessary so I am holding out on the coral for about 8 months. With the sump I have also heard it is not a necessity for your tank, but is a nice addition. Just wanting to hear your opinion on all of this. Thanks!