Hi, it can be a case of trial and error but in theory, you want the first chamber to be either empty and use it just as settlement, or to have brushes in it, if it is used as settlement put the brushes after the settlement. Then after the brushes, id add some more mechanical filtration to remove the smaller particles. Id use jap matting set up horizontally with spacers. Now you can go into the biological filtration, id just go for K1 as it is ZERO maintenance, other media such as alfagrog and flocor tend to gather crap in them and can go anaerobic. But if you do use either of these then id try and use flocor, but add air to it to try to stop any muck settling in the tubes. For bio filtration id go for 2 or 3 chambers (depending on if you use a settlement chamber). And in the last chamber have either jap matting horizontally again, or have static K1 to give the water a final polish before it goes back to the pond. If you do go for settlement in the first chamber it always gives the option of moving the brushes back a chamber at a later date and adding more bio filtration. Hope this helps.
Posted on Jun 28, 2006, 7:15 PM from IP address 82.38.197.142