I am interested but not sure what else I would need
my RO unit is in my basement & 1 floor up & probably 40ft away is where the reef tank is. Presenly I just carry a bucket of water to the tank every few days. Thus a auto top-off would be very nice!
On another note, do you have to have a RO to use one of these? My tank at my house is a FO tank & I would love to not have to mess with topping off the water. However RO isn't needed