Posted 17 May 2010 - 01:37 PM
I've just had a sort of major tank disaster and I'm hoping to use potassium permanganate to sterilize the driftwood, plants, substrate and filter material. I don't want to use bleach because I'm afraid that the plants would be damaged and that the driftwood would absorb and then leech bleach into the water. Could anyone tell me where I could buy this chemical? I have heard some conflicting information--one, that it could be found readily at hardware stores like Ace or Lowes; and two, that this product could only be ordered online because it is a powerful oxidizer, and that it is subject to hazmat fees. Which of these are more true? Does it simply vary by state? How safe is this chemical for plant and driftwood dips?