can i use this kind of carbon in reef tank since other brands are much more expensive

[Knawaiseh]

 

[Duncan62]

If you get flow thru it it'll work. Rinse it good. Good luck!

 

[Randy Holmes-Farley]

For aquarium water? It looks like an RO/DI carbon cartridge, and if so, it will clog very rapidly and be near useless.

 

[Duncan62]

For aquarium water? It looks like an RO/DI carbon cartridge, and if so, it will clog very rapidly and be near useless.

I thought he was just using the contents. Maybe a cheap ice maker/refrigerator filter. Hard to believe it's cheaper.