I'm looking at ATO's for my 30 gallon reef tank. I'm away for days at a time and don't want my wife to have to worry about adding water to the tank. First, for filling my tank during water changes, I use "Store Bought" water from my LFS
. After research, I have been reading that most people aren't using salt water for the Auto Top Off supply?
Am I correct in so much as the Top Off water supply should be RO
water only with NO Salt Content? I'm assuming that since as water evaporates, salt remains behind and we don't want to add more to the system during top-off?
I want to set this up correctly, so any confirmation would be appreciated!
Have a great day!