Opening house up

[Wild1]

Because I live in Florida my A/C is on most of the year. Its now getting cool enough to turn it off & open up my windows. I have heard that doing than can change tank chemistry/parameters. Is this true & what if anything do I need to about it? Thanx in advance

 

[redfishbluefish]

The only think I could think of is positive......CO2 is reduced because of fresh air and your pH might slightly increase.

 

[chris.scangarello]

+1 You may see a slight increase in your ph as you get more fresh air in the house. The only other parameter that could change is your tank temp depending on what temperature you normally keep your house with the A/C on.

 

[Randy Holmes-Farley Verified Community Expert]

Evaporation may change, which might impact things like kalkwasser in an ATO.