our houses are fairly airtight, (this improves efficiency) , co2 from our breathing raises the partial pressure of co2 inside the space and even slight changes in the atmosphere have great affect of water ph.
all good here, need to trim algae in tank and figure out if I can make 2 led lights work over my tank. and still figure out goal tank size and where to put it.
how is refugum cheto going?? is the kessel growing it like weeds?