Reef55 said:House is closed up much more in winter... people breathing in your house causes a higher amount of CO2 than during the summer. This higher CO2 in the air will cause a drop in tank ph.
denvig said:Don't forget that your heating system, if it?s gas or oil is using up oxygen to this time of year.
denvig said:Don't forget that your heating system, if it?s gas or oil is using up oxygen to this time of year.
smcnally said:I have electric.