I doubt that your new house is the problem. I see you live in Miami. Temps are mild to warm at this time of the year and I suspect you have the house open. I live in Ft. Pierce a couple of hours north of you. We have our house wide open enjoying the fresh air.
When
Ph in a tank is low the worst thing you can do is add a product to raise the
Ph without finding the root cause of the lower
Ph. Like you found out, using the product raised the
Ph temporarily but it went back into balance with the
Alk and Calcium considerations in the tank.
My guess (and it is a guess because I know nothing of your tank size, inhabitants, water parameters and your maintenance procedures) is your Alkalinity is low. Have you tested the
Alk?
Here's a link to an informative article by renowned aquarium chemist and author Randy Holmes Farley -
Chemistry and the Aquarium
It covers this topic in depth.
Dick
