Just set up my RS dose,fairly easy as I already have reef beat app for my RS led 90’s. I dont have a sump and my tank is rimmed I had to get a little creative as to where and how to place dosing tubes. I just drilled some small holes in center brace and use the red tips that came with RS dosing tube kit. A smidgen of krazy glue and good to go! Next I will purchase ATO and my dreaded chord of dosing and top off before leaving for work will be over! Who would have thought,after 35 years in the hobby, upgrades like these were even possible!Which one do you have? I’m thinking red sea ATO. Just bought RS reef doser