I reached into my desk drawer and pulled out a small sample jar of Noodler's Heart of Darkness. It had been laying on it side for at least a month. When I looked was three different mold colonies growing on the ink. I assume, at some point, I cross contaminated the ink with something when I transferred from the big bottle, to the smaller sample bottle. I will check my original bottle when I get home, but has this ever happened to anyone else? but,

