Salt was fine,
activated carbon, or just some carbon pad? Where to put it?
nah, just anything that will filter out the fine particals - put in weir one, the one with the grill on the top
Do you know where does the water enter the chambers from the main tank? Is it through top of chamber 1 (The grill bit)?
yes, thats right
Post some pics bro...soon as!The rock has arrived!
Now for the artistic bit.
DS