What really are we talking about? We get around dosing checks with the EI method. Then, if we experiment using fish gasping, algae and pearling as a point of reference in upping or lowering our co2, is this just not another form of EI dosing? The chart and drop checker get no closer than we ourselves can predict with a close eye on our fish and tanks, and small changes in bps. Probably a better estimate considering we dont have restrictive limitations (numbers) and nor do our planted tanks.
"The odds of winning are the same as being mauled by a polar bear and a regular bear in the same day"