I had a small one that I picked up from Amazon when I had my 60. It worked great. I still have it in case of emergencies. I believe it is called an RO Buddie. And welcome!The main thing I'm wondering right now -- do people with 40+ gallon tanks generally set up their own RO filters at home?
Thanks! It's a weird approach for sure. There's a common thread of "don't go into it as a business because it will ruin your hobby," but it's never actually *been* a hobby, so I'm approaching it from a different angle.Feel free to PM me with any questions. I am more then willing to help you along your journey. I truly believe that coral farming is the future of this hobby.