Dear Massimo, I am admiring your firm and conscious critical thinking, and I wish you and your friends the very best. This – concentrating on the roots of the hobby and opposing its being dominated by values of the market – is essentially what I think is the path towards the future.
Your rules for the tanks are – may I say – a bit rigid; I am in favour of them but they are hardly to be realized fully with Paros. I do not know any specialist for these fish who is able to do without Artemia, although it would be fine if one could dispense oft it. But this is not central to your main point. Most certainly, Paros are a wonderful group to learn a maximum independancy for the hobby from the market.
Go on! If we can, we shall try to help you! Peter