I started reefing 20 years ago. I can remember my first skimmer the needed an air stone down in a homemade cylinder. The aquarium was lite with VHO tubes and I thought it was awesome at the time. I used to take my liverock out of the tank every week and scrub the algae because I wanted it white and clean. Times have changed - Needless to say family got in the way and the wifey made me sell the tank. Now that I'm an empty nester as they say, I can bring back something I love to do. My current tank is a RedSea Reefer 450, 92G DT, with about 30G sump. I removed the stock sump and replaced with a Precision Marine and hard plumbed the entire under carriage. The tank has been up for almost 14 months. and I'm just starting to benefit from time I put into my aquarium. I feel the tank has just started to mature to the point where I can put corals into the tank and watch them grow and with color. Ill try to list below the equipment and parameters and current challenges. Vertex 180i Skimmer - Clean cup twice a week, and the throat every 3 months Echotech return M1 - Clean every 3 months 2 Ecotech Radion Gen3 (non Pro) - I was so upset when I purchased these because the next week they came out with Gen4 and nobody told me, then again blame myself for not researching. Marine Pure block in the sump 2 MP40's on each end of the tank, running in different modes. APEX 2016 to monitor the system 2 APEX DOS units. - I dose Calcium, Alk, MG and NoPox. Lighting is mounted with EcoTech arms with a distance of 12" from the surface of the water. My lighting is at 60% due to my live rock so low in my tank. PAR at the highest point is about 350. I run Blue, UV, RB at 100%, R and G at 20% and Whites at 65% intensity. Lights stay on for 10 hours, but the whites stay on for 6 hours at peak. I've tried different lighting combinations but think I finally got it right. Challenges: I want to add another light (Radion Gen4) to improve shaded areas. I had a problem with Bryopsis and the fluczonal (Spelled it wrong) really worked. For the longest time, I had a bunch of brown sticks...just recently the corals are starting to color. I get excellent PE but they were brown and lime green. I live up in the north bay and as you know we don't have any LFS up here. Its nice to have a community of Reefers in the Bay area to share this experience. As you can tell, I love my glass box.