So I am still new to the hobby and I recently started dosing about 3 weeks ago for the first time in my 50g tank. I am only dosing Alk, Calcium, and Mag. I haven't done a water change in a while and was wondering how to go about it since I am manually dosing.
Do I do the water change, test the levels and then add the elements?
Do I do the water change, test the levels and then add the elements?