Posted: Fri Jun 10, 2016 10:05 pm Re: Tank evaporation
When my A/C is running, I lose a similar amount.
I have a 55 gallon, with another 55 gallon as a refugium. The refugium has glass tops and likely loses little to evaporation. The main tank has glass on half and is open, with an ATBA on the other half. There's also an overflow that is open. The heat lamp is above the ATBA.
I bet I have less exposed water for evaporation than you, but my tank is in the basement, meaning when the air is on, there is a big difference between air temp and water temp.
I see the least evaporation when the house is open, and the most when the air is on. Heat in the winter means more than when the windows are open.
Is your air on?
Tobi a RES born in 2012
1 dog, 1 teenager, 3 aquariums filled with fish, snails, shrimp and a bit of algae