Hi fellow reefers, I have been thinking long and hard about auto water changing and have planned out on how i would go about doing this. I currently have a reefer 200xl and i live in HDB. However, i do live at level 1 and can have a huge tank of saltwater outside and route it to my tank with perhaps the kamoer x2s water change pump. What are yall thoughts. TIA Sent from Singapore Reef Club mobile app