What is PP ?
Duncan
If you go to the Discus Resourse Page, look in the treatment/disease section. You'll find an article on PP by Peter Selph. He lifted "his" method directly from that article.
What is PP ?
Duncan
potassium permanganate
We used it a lot in CA for our koi ponds.
Whew. The PP question posed in 2005 has been finally answered.