>The best cure for it is to take everything from the tank to your local
>tip, steralize >thoroughly with Potassium permanganate solution that is so
>dark that you can barely >see through it. Leave the tank to soak like that
>for a couple of months....
>Personally, I find a gallon of petrol and a match works best....
Damn!! I've got that stuff - your not serious about that are you?
What causes it?
I'm going to pick up some otos this weekend!
Gail