

Actually we are really luckily as we have two.
yeah midasblennyi had the same problem with my am stirrer and no matter what i used it still went brown, i got the shits and stripped the stirrer down, replaced that pipe that runs up the side and the one way valves and the o ring. i also found that the tube in my peri pump had a small split in it. after that it was all fine again. i thought that it may have been getting air in somehow.