In an effort to automate dosing, I picked up a Neptune DOS and will be using a dosing container I found on BRS that fits perfectly next to my Reefer 170 sump. I modified the DOS to use RO Polyethylene tubing instead of the soft tubing, and had to drill the reservoir to push the tubing through instead of using the barbed end.     Materials: Neptune DOS: https://www.bulkreefsupply.com/dos-dosing-and-fluid-metering-system-neptune-systems.html Reservoir: https://www
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