You technically don't actually need a skimmer.. haters please don't flame me for that.. but it is an aid in helping with the control of biological waste in your tank, this will keep you from doing excessive amounts of water changes. Just keep an eye on your water parameters and make sure your nitrates are in check and you will be fine until the protein skimmer shows up. I was freaking out when you said you wanted to go with a coral life skimmer, I have had a lot of headaches from them, yes they work well, but they are really hard to balance.