Seachem Purigen Product Option:Seachem Purigen 500mL (163) it contributes to overall filter

it contributes to overall filter efficiency and performance

It is designed to trap larger particles of dirt and debris from the incoming water before it enters the main filter baskets

Alternatively

Replacing a damaged or worn impeller is essential to maintain proper water circulation and filtration in your aquarium

The nauplii have very good buoyancy

Seachem Purigen Product Option:Seachem Purigen 500mL (163) it contributes to overall filterSeachem Purigen is a premium synthetic adsorbent that is unlike any other filtration product. It is not a mixture of ion exchangers or adsorbent media, but a unique macro porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others by over 500%. Purigen controls ammonia, nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful compounds.