Two Little Fishies NPX Bioplastics

[mark freshwater]

Hi,
I was just looking at this stuff, "Two Little Fishies NPX Bioplastics"
it claims to remove both phosphate and nitrate at the same time,
has anyone used this?
It would be easier to just use this than to set up a sulpher/calcium reactor as well as phosphate reactor, plus 3 types of media.
And does anyone know how often to replace it.
My tank is 70gal.
Heres a link https://www.drsfostersmith.com/product/prod_display.cfm?pcatid=23764

here is a different brand http://www.aquariumonlinesupplies.com.au/filter-media/marine-sources-np-biopellets-500ml-4825.html,

and another http://www.aquariumonlinesupplies.com.au/filter-media/np-biopellets-filter-media-500ml.html
thanks mark

 

[Ranjib]

I have heard of couple of folks using it with varying degree of success. They are kinda carbon source/substrate of beneficial bacteria which in turn does the filtration, from what i recall. Its bit tricky to dial them in (i.e. the flow and amount)