Fluval Mechanical sponge for filtration with activated carbon for filter C3

Very good, just one night, water no more yellow

Bought to use in my redsea nano tank and these fit perfectly into the chamber next to the return pump. Don’t forget to give them a good rinse before using they’re quite dusty / carbon dust like a fool I forgot and got a cloudy tank for an hour

Trusted fluval for years!

Not sure if the pouches are contaminated with metal or iron or something but the mags went rusty after a few days and has ruined the water. Would not recommend and extremely unhappy

Doet zijn werk

Bien. Es la segunda vez que compro y de nuevo todo correcto. No tengo queja

These carbon pouches Fluval are an easy way to keep your aquarium water clean. They are the perfect size to fit in most filters and function right away to keep your water clear. It’s a good idea to give them a quick rinse under running water before using them; just to get rid of the fine charcoal dust. I usually replace these pouches when I notice the aquarium water isn’t as clear as usual; works both for fresh and saltwater setups. Great on there own but combine with filter floss and bio-media and you’re on your way to crystal clear water. Overall: +Provide Clarity +Easy to Use

Gute Ware schnelle Lieferung

Very good product. The water in my aquarium looks very clear.