I don't but I considered it. Do you have any feedback?
I really like your tank, looks great with those plants and I'm very envy of your choice of fish.
Regarding purigen, I am very satisfied.
In fact, I use it in all three of my filters.
If you want to use it in the fx6 I recommend getting the 500ml container and "the bag".
I use about 400 ml in the fx6 and one 100ml bags in each of the two eheim 2217.
Edit:
I used it to remove tannins from large new driftwood I added, and it worked very good.
Also I regret getting small 100ml bags (I have 5 of them), should have got another 500ml container and "the bag"
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