ATO and filtering city water.

[Crowned Angel]

My humidity is low and the water level drops in a week or two. Is there a fairly simple ATO and prefilter to use house water supply to top off a 55 planted tetra tank.

 

[PheonixKingZ]

I would replace water manually. It is more work, but it gives the piece of mind that the system didn’t fail and overflow your tank.

 

[Crowned Angel]

Phoenix, does Brita cause issues or should I use city,(county), water?

 

[Crowned Angel]

I got a breeder box into which I add water. This allows me to top off manually as you say.

 

[Colin_T]

put a coverglass on the tank and it will significantly reduce evaporation and you shouldn't need to top up the tank between water changes.