FluvalU Internal Filters Clean and Clear Cartridge, White

Water has never been so clear. they are expensive though.

Bought to add to my U1 filter and it works great. Was easy to insert as there’s a removable section in the filter sponge so this just fits right in there and it seems to be doing the job as the tank water is keeping lovely and clear.

Easy to fit in the central cartridge of fluval U series filters, where the Biomax stones go, and helps keep your aquarium water clear. I use mine in my Fluval U3 internal filter and pleased with it.

I was struggling with the water clarity in my 200l aquarium which has been up and running for over a year now. Even when everything had settled days after partial water changes, vacuuming the sand etc; the water still didn't look great. (I do only change the filter media when absolutely necessary and normally give it a wash in the old tank water.)I spotted these cartridges on Amazon and thought i'd give it a go; not really expecting much. I put one of these into the Fluval U4 filter and within 2 days the water was clear! I think they're fairly priced and definitely worth a go!

Bought over and over.Well priced, great quality

Sorted the nitrate issue overnight. Small cartridge but fantastic impact.

Although they do a good job there just too small and too costly. I used these once then switched to buying a large sheet of filter floss which I cut up and put in place of these. Water is crystal clear with both products but the filter floss is a fraction of the price

The media could not be loaded. Great value, fits perfectly into the filter and the water is very clear. Fish must be happy as we now have fry.

Diese kleinen Einsätze sind echt super!Senken messbar den Nitratwert und sorgen für kristallklares Wasser. Ich benutze sie im Fluval U1-Filter der in meinem 30 Liter Aufzuchtbecken läuft.Nicht ganz günstig, aber seinen Preis definitiv wert!

Achat de la marque Fluval suite à un aquarium de la même marque. Changement depuis peu de l'aquarium de la marque Fluval pour un Aquatlantis, les produits de la marque Fluval restent cependant aussi bien mais la forme n'est pas adaptée pour l'aquatlantis.

Ideal

Awesome product, I find it doesn’t last 4 weeks but I use it in a turtle tank not a fish tank so that’s probably why! I would buy plenty more if you had more sales on them, full price is abit too expensive when for me they don’t last the 4 weeks!

Dachte erst es wäre teuer für über 20€ ein 2er Pack ABER es sind 4 Stück für den Preis. Das ist echt ok. Passen perfekt in den passenden Filter. Hab keinen Unterschied zu normalen filtermedien festgestellt. Ich fülle lieber mit siporax weiterhin. Da es sparsamer auf Dauer ist. Siporax lässt sich gut auswaschen.