Hi Daz, heres mine
i338.photobucket.com/albums/n406/ady-b/koi011.jpg
Its made with planters from wilkos and several lengths of 2"x2" timber and fed by a 7,500 lph pump.
In the top tier is jap matting followed by lava rock then crushed oyster shell then finally flocor media. Works a treat and cheap as chips
Ade
