Penso di aver trovato parte della risposta che cercavo.
Su questa pagina, risponde un responsabile del laboratorio Sachem
http://www.thekrib.com/Plants/Fertil...lourite.html#1
Quoto:
Domanda
Along similar lines as the flourish iron question that was raised, are flourish tabs supposed to be used in combination with a flourite gravel bed?
Are the tabs similar, in the sense that you don't 'need' them, but might want to use them, to stimulate a plant that just needs that extra 'oomph'?
Or is it really designed to enrich a non-flourish gravel bed?
Risposta
Yes, the tabs are similar, you don't "need" them but are good for giving a
plant that might need it a little extra something. In a non-enriched gravel
bed they would have a much greater benefit since the bed presumably has
very little nutrient content.
Di fatto se si legge l'analisi fatta dal laboratorio sulle tabs Flourish
http://www.seachem.com/support/MSDS/...shTabs.doc.pdf
le componenti di Azoto e di Fosforo che non sono presenti nella composizione della Flourite non ci sono neanche nelle Tabs, che ne dica il sito italiano
http://www.plantacquari.it/seachem/tabs.html