That's a relief if true, and after re-reading his articles on Calcium & Alk myself I am apt to agree with you. The convo I am referring to, after thinking about it some more, was a discussion about sulphur denitrators, not calcium reactors, and I wasn't a part of the convo, just a lurker. Which means I cannot find it now. I was assuming the discussion about denitrators would apply, since both work by increasing the amount of CO2 in the reaction chamber which then dissolves the calcareous media (one on purpose, one as a by-product). A common technique with sulphur denitrators to offset the lowered pH is to take a page from Ca reactors and add aragonite to the chamber on top of the sulphur: as the bacteria consume all the oxygen in the chamber they produce CO2 which makes the water too acidic, so aragonite is added to buffer the water before returning it to the tank.
So the difference is a Ca reactor is purposely lowering pH in order to buffer the tank by injection from a CO2 canister, whereas a sulphur denitrator is creating CO2 and lowering pH as a by-product of the denitrification process and thus incorporates calcareous media to the chamber to offset/buffer the tank. But in both cases the tank is being buffered by aragonite dissolved by CO2, therefore you'd think the same 1:1 ratios apply. So now I've utterly confused myself. Man I wish I could find that convo, I swear I'm not making it up, lol.
