Hello everyone! I have not had an issue with my tank and temps before, but the heat waves we have had this summer have already hit my corals hard! I usually just float water bottles that I have in my freezer for the hot days, but this is not even keeping up with it. I do have AC in my house and have been running it cooler than I would like. I wanted to look at a chiller for my tank, but was a bit overwhelmed with all the options/choices. I currently have my apex in the chiller area of my Reefer, but could try and move that. Tank: RedSea Reefer 525 XL Thanks for all the advice!