pads

I was browsing amazon for some carbon pellets , and came across carbon infused filter pads that come in a large sheet and you cut to fit your filters. I was wondering if any of you have tried these and if it really works? If so that would be great because it would save me a ton of time rather...

Hi, can anyone tell me urgently which way round the jumbo filter pads go in the internal box filter? (Juwel 240L)  (Jumbo)   The info is no longer on the official web site as they are just showing the current range of filters.