Contains 100% walnut leaves – no additives

nitrite and high waste levels ✅ Contains natural biological filtration support

For regular maintenance: add a small amount directly to the aquarium water as needed

the extract has a natural inhibitory effect on harmful bacteria

Seachem Purigen hygger Contains 100% walnut leaves –Seachem Purigen Advanced filter media for crystal clear aquarium water Seachem Purigen is a high quality synthetic filter media that effectively removes both soluble and insoluble impurities from aquarium water. Unlike many other filter materials, Purigen is not a blend of different adsorbents or ion exchangers, but rather consists of a unique macroporous synthetic polymer that can absorb organic waste very effectively. By removing nitrogenous organic