Hey guys, I had a need to see what qty of water changes and how many I would need to get a parameter down to a certain level. I found myself creating a quick excel calculator to make this easier for me as i was contemplating three small water changes or two big ones to see where i would end up and which would be better. Other people could expand on the original intent and use it to plan out a set of water changes that will reduce a parameter but also not cause a massive swing in parameters in a short period of time. So i uploaded this here file and made a google drive share-able link. You set your overall water capacity, the parameter value as a whole number in parts-per-million... and you get three water changes sections where you set quantity of each water change and it tells you what the value would be after each one (consecutive changes). There may be something like this somewhere here, but forgive me this site is pretty massive (good thing) and I didn't see anything.
https://docs.google.com/spreadsheets/d/18mS50dA_ivLkynEf7-HQeMV8vbcXW2QnH8E2GfFNGts/edit?usp=sharing
https://docs.google.com/spreadsheets/d/18mS50dA_ivLkynEf7-HQeMV8vbcXW2QnH8E2GfFNGts/edit?usp=sharing
