water for ato

[CraigSlice]

is it okay to have the water for my ATO completely covered. I know with my tank its better to have the tank open for gas exchanges, but wasnt sure about the freshwater in the ATO

 

[kau_cinta_ku]

for your ATO, it is fine to keep it covered. less evap from your top off area that way

 

[crvz]

Agreed with Sam, that's fine.

 

[Flipper62]

I keep my R0/DI top off water in a 3 Gal water container.

No mater when......I need to use it..........I always test it with my COM-100..............just to be sure..