Carbon filter, will this do?

[minidude2]

Will this work? It doesnt use those crystal things=save money

https://www.gardenscure.com/420/mari...on-filter.html

minidude2 Reviewed by minidude2 on 02-19-2008. Carbon filter, will this do? I have found a mega cheap carbon filter. you have to scroll to the bottom and click the down arrow to get different sizes. £7.99 is pretty cheap though! Are these good enough for a 2 plant LR grow? Can Carbon Filter Rating: 5