Hello everyone I'm John from South Mississippi and I'm finally making the jump into this wonderful hobby. I'm only new to reefing and corals, as I've had numerous successful freshwater and fowlr tanks in the past. This spring I purchased a 40 gallon recife cube AIO. (It remains to be seen whether or not that was a great idea). I was going to use it as a planted freshwater aquarium, but I've always wanted to keep corals, so here I go. My lfs basically told me to scrap the filtration media and the skimmer that it came with and now I'm unsure if this was my best option. Also, the water levels involving evaporation and adding water is a bit puzzling. But I'm going to keep it positive and keep asking questions. I will begin my build thread immediately. I already have my live rock, sand, and one pajama cardinal in the tank. I'm ready to move to the next step but I have a little more research left to do. Thanks for hanging in there with me and I can't wait to hear from everyone! (Going to start that build thread)