Green slime on VFT soil

Dio Lazo (
Thu, 29 Jun 1995 23:47:21 -0700 (PDT)

When I bought my VFT, I noticed that there was some green stuff on
the soil. I thought it was spaghum moss or something because
it sure isn't fungus->there are no hairs. I dug a cotton swab
into it and it came up easy, but it looks like it slowly creeping back.
I don't notice any changes in my VFT.
Should I be concerned? And does anyone know what this is?