Ian086
Aquarium Advice Addict
Purigen is primarily a "water polisher" to make your tank water ridiculously clear and almost transparent in effect; but, as has been stated, it's not really "better" than running extra bio material or mechanical material in a filter...I just suggested it because it's what I run for "extra media" in both my AquaClear 110 and Aqueon QuietFlow 55 HOBs.
Read about it here:
Seachem. Purigen
Think of your tank as a cake, you've put all that effort into it, well Purigen is the icing for that cake!!!