Never use fragances. They have no testing done on any of them regarding both Human and Fish health over time.
In other words, they are exempt from toxicology testing(at least here in the USA
).
If you stink or your tank does, clean it.
The phytocide is called high O2
I think unless you measure O2 over the course of a day with a data logger, and say....CO2 at the same time, only then can you make some predictions about respiration of fish.
Here's an example from a mazzei driven Aquarium:
As you can clearly see, when you take the reading at one point in time does not tell you what is occuring really.
Same is true for O2.
Some aquariums likely have no such need for aeration at night or adjustment.
Amano's little bit about raising the lily pipe is reactionary......it is not about looking into why one aquarium vs another requires degassing, more O2 or understanding why fish gasp in one, but not the other/fish respiration etc.
This is why know why and looking into that, is important.
Very important if you ask me, it allows us to add more CO2, better O2 levels for fish etc.
CO2 kills more fish than any other single thing.
Amano has killed plenty of fish with CO2, ask him.
Read Book 1, he has an example and mentioned it.
In an ideal world, dosing daily, making adjustments daily sounds nice, but it's not realistic nor hardly everyone's goal.
Wiser to engineer things to account for human factors, errors and habits(all of which are different person to person).
Regards,
Tom Barr
Regards,
Tom Barr