Hello BAR members, I'm a new member to BAR and reef keeping in general. I used to keep freshwater for a while back but moved to the bay area 4 years ago. I didn't bring anything with me so I did not start any fish tank. Recently, I started a salt water tank and it's been a fun learning experience which includes flooding my floor when I simulated a power failure. The issue is now fixed by adjusting the output height. I think adding a check valve to the return pump would also have fixed the issue but currently, I simply make sure there's enough volume in the sump. My tank is a 55 gallon acrylic tank with another 55 gallon acrylic sump. Although realistically, I think they are running at around 45 gallon each. I'm running about 60 led lights (12 UV, 24 blue 24 white) in a DIY-ish hanging heatsink. Eventually, I would like to get off my butt and program an arduino to dim the lights. I am also trying to run with an algae turf scrubber (ATS) instead of a protein skimmer. So far, the tank has been running for about 6 weeks and I feel like the algae turf scrubber might not be up to the job. At least not until after hair algae grows on it. I worry because I'm starting to see nitrate build up and a thin protein layer on the surface of my sump water. I will probably buy or build a smaller DIY protein skimmer to use until the ATS is ready. As for live stock, I currently have: 2x Ocellaris clownfish: Doing well. No issues. Cleaner shrimp: Doing well. No issues. Blastomussa Merletti: Seems to not open as big. Not sure what the issue is, moved it lower to the tank with less light and flow. Hammer Coral, Branching: Doing well. No issues. Green Acan: Not doing as well as the Red Acan. Currently, sitting in lower in the tank then the Red Acan. Red Acan: Doing well. No issues. Dragons Revenge Favia: Doing badly after adding it to the tank. Coral started recessing after the first day. Didn't notice it since the back of the frag was recessing while the front was doing fine. Hypothesis: The recession was due to rough handling when dipping the coral and/or large temperature swings (80->84). Tissue does not seem to be recessing anymore. Oregon Mummy Eye Chalice: Got it in a bad state (from another reefer), seems to be doing better currently but still isn't in the best condition. Blastomussa Wellsi: Somedays opens up really nicely. On other days, seems to be shrunken. Need to watch the coral more. Lessons since the previous post: Need to acclimate coral to lighting. Be careful when buying coral from other reefers, especially when the person has been neglecting his/her tank. P.S: Being new to reef keeping, I think one of the biggest mistake is to grossly underestimate the cost of EVERYTHING!