I do, and here's how I do it. I take the old potting soil, put it in a 3 gallon pot, and pour a kettle of boiling water through to kill it, then I mix it half and half with new potting soil. Things grow very well in this, and I've never had any root rot problems from the old soil.
Didymo (Didymosphenia geminata), also known as rock snot, is a non-native invasive microscopic algae (diatom) that can produce large amounts of stalk material to form thick brown mats on stream bottoms.
What Is Love by Haddaway. Haddaway (born Alexander Nestor Haddaway, January 9, 1965) is a Trinidadian Eurodance and House musician. He grew up in Europe and the United States, and has lived in Cologne, Germany since 1989. This was his only big hit in the US, but he had several more in Europe.