OllieNZ
Member
Hi All,
Im after the name or thread it was in, of the type of filter that sat on top of a tank and used roof guttering full of gravel that was then planted.
Any help would be appreciated.
Im after the name or thread it was in, of the type of filter that sat on top of a tank and used roof guttering full of gravel that was then planted.
Any help would be appreciated.