this is a hilarious conversation.... you actually think you can use a formula to evaluate CO2 in a reef constantly? good luck with that.... unless you have a meter to understand the different CO2 output in your environment, i don't know how you can come to that conclusion, but more power to you.
There's also the assumption that the pH swings are from photosynthesis alone . No pets, people, appliances in the house?
Yes, a skimmer will absolutely change gas exchange in a reef,,,, different skimmers will have different gas exchange. Even the same model skimmer will have different gas exchange throughout the year. Even dosing into a sump with a different skimmer will effect pH by means of precipitation.
There's also the assumption that the pH swings are from photosynthesis alone . No pets, people, appliances in the house?
Yes, a skimmer will absolutely change gas exchange in a reef,,,, different skimmers will have different gas exchange. Even the same model skimmer will have different gas exchange throughout the year. Even dosing into a sump with a different skimmer will effect pH by means of precipitation.