right this may sound a stupid question, but i wont know till i ask, and it safer to ask then not know, i know if you use a filter media from a established aquarium in your own filter it helps speed thing up, im just wondering can you use filter out of a pond, i have had a pond in my gardon for about 10 years, so im just wondering if you could use that filter media, or is it not possible?
thanks
thanks