This is the thread for my new 20 gallon SPS/LPS reef. It is an upgrade of my 7.5 gallon SPS/LPS borderline pico/nano found here: https://www.reef2reef.com/threads/7-5-gallon-bow-front-sps-lps.309229/ As you can see it is fairly crowded... The first thing I will do in this thread is document the upgrade/transfer process. I have been considering upgrading for some time due to increasingly scarce real estate in the tank. The first problem I ran into was finding a tank as beautifully designed as my Mr. Aqua 7.5 gallon bow front. Seriously, there are a lot of ugly tanks out there. The next thing to consider was choosing a light that would provide for the needs of my corals, several of which include acropora and montipora species. After much deliberation and months of research, finally settled on the IM Nuvo Black 20 gallon, and the AI Prime HD. I ordered them last week, and they are scheduled for delivery tomorrow. I have also ordered 10 lbs of dry reefsaver rock which will arrive on Tuesday. I have a larger spare HOB power filter that I will use. The HOB refugium, Jebao powerhead, and Smart ATO micro will remain the same. In preparing for the upgrade, I have redone some placement. I consolidated some frags on rubble rocks, and glued down any loose frags to either rock or rubble. My plan is to do a quick swap in one evening. I will drain the majority of the water into a spare aquarium I have on hand. I will then place all of my rock and corals into the holding aquarium while I vacuum/rinse the sand bed well. I will place the fish/shrimp into a separate container. I will remove all of the sand and use it all in the new tank along with a bag of dry sand I have. I am going to try both the Prime HD and Maxspect Celestial together on this tank at least at first. The Prime should be more than powerful enough for the tank alone, but as with all LED pendants, there will be shadowing, which is not great for SPS. I hope that the lights will blend well and play together nicely. Finally, with a larger tank, I will need some new livestock to provide proper nutrients to the corals. This has been a struggle in my 7.5 gallon, even with 2 pink skunk clowns, 2 shrimp, and a yellow watchman goby due to the filtration methods I have been using. Please vote in the poll below and I will purchase the winning contestant as the first addition!