If you're asking my opinion.. i prefer setup 2
As for HC.. just be careful with it growing on brand new ADA soil. It might not be the methods you choose.. it might be just that the soil exudes so much no3 or is so acidic when it first contacts water, that it melts HC, or any other sensitive plants for that matter, to bits. But that said, amazonia 2 isn't as bad as amazonia. Lets see how it goes.
Don't get me wrong.. it is one heck of a good soil though. Just need to be realistic on its past properties.
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