I have a 55g with live rock and some coral. I am new to saltwater and I am trying to do this right. I have fluval 405 filter, a protein skimmer and t5 lighting. When I bought the tank and stand they told me I could not have a sump. I want to do the best I can and I am trying to learn. My tank has been up for 8 mths. I need all the help I can get. Thanks