Not everybody has the skills or budget to install a auto top off system for their coral tank, or sometimes the tank is so small it's not really worth setting one up unless you see a ton of evaporation happening. Aside from just manually adding in fresh water to your tank do you have any creative ways of keeping your salinity stable? I have a couple of bottles with extra flared bases that I have sat on the corner of my tank and filled with fresh water that are tipped upside down so when the water level falls below it it will just automatically top up the tank back to the original level, and I only have to refill it once a week.

