"bo0ger1" .@. wrote in message ...
What mistery elements are you thinking of ?
And what process would allow accumulation
of an element during periodic water changes ?

I am referring to any element that can be taken-up by any organism. The
element doesn't 'leave' your aquarium just because the organism has utilized
it. Organisms that have taken in the element and die, will decompose and
release the element back into your aquarium.

That is the bauty of the water change: it works both ways,
not like your method of adding elements... Every water change
brings the ions composition closer to the oriinal one...
Think about this issue with your method: you are dosing
elements which you assume they are taken up by animals
or other organisms that die and release the element back
to the water - then you add more element there... why ?
This mistery element which accumulates due to the animal
die-off hits more your method of not doing water changes.
Do you see it now, that not doing water changes is bad?
Looks like you have proven this to yourself.