I am running a 125 DAS (fish,soft and SPS coral is the goal) that has been converted to a overflow/ecosystem refugium setup. I am using a Mag 9.5 return and a Mag 9.5 on the chiller return. I have 2 100 watt Ebo Jager heaters and a 1/2 HHP chiller that I will be running on a Ranco controller. I am looking at automating as much as possible as I have plenty of room now that I have a dedicated room for the wall tank. My question is what type of equipment can I upgrade to to automate as much as possible. I would like to have an auto top off and maybe even an auto doser for chemicals or would consider a calcium reactor to even elimanate the need for dosing calcuim. I would also like some input on what the majority of you are adding for chemical supplements. I have been using the Garf method now for about a year (seachem supplements) and am not having a lot of success. I have been out of touch with technology for the past several years and wanted to know how much can be automated. Your input would be greatly appreciated.