Would you accept a measurable increase in redox using an Oxydator would prove an increase in O2 in the aquarium?You cannot prove a negative, so, I won’t spend any lab time trying to prove the Oxydator does not work. So let’s move to looking for solid evidence for the many claims. I like your math example. It represents something a bit more substantial than anecdotal evidence to discuss.
Since we do not know the O2 level with and without the Oxydator in the aquarium in your example, claiming the Oxydator oxygenates the aquarium water to any significant degree is an assumption. We also do not know the normal flux of O2 from the atmosphere to the aquarium water per day, and therefore, we cannot tell whether the potential extra oxygen from the Oxydator really matters. Why “potential“ oxygen? As you rightly pointed out earlier, the fate of H2O2 is highly dependent on many things, Fe content and organic matter concentration being just two of them. Whether the H2O2 from the Oxydator increases the oxygen in the system or is removed from the system by oxidizing organic matter is unknown. In turn, because the distribution of H2O2 between these two fates is unknown, the amount of oxygen added by the Oxydator is unknown. All this makes claims about the Oxydator adding a substantial amount of oxygen questionable.
Dan