I have been working around 70 hours a week and so have had to give away my animals, as well as have neglected cleaning out my tanks. Once school starts back up, I'll be working less and actually have more time to the hobby.
I noticed that I've had plants growing in two of my enclosures, and after a couple months still have not show signs of decay. These pictures are from today.

Setup has no light other than when my room light is turned on (which is just an incandescent-styled LED bulb). It has a little body of water with NO flow (It has to be unbearably stagnant by now), on top of which sits eggcrate+weedblock, and Sphagnum Peat moss.
Around springtime, I placed in some [what looks like] frog moss from outside into the enclosure to cover the sphagnum peat moss. I had originally intended on having an environment suitable for salamanders, but gave up on the idea when I did better research and had low funds to improve the enclosure the extent that it would have needed.
Somehow, that dead rotten sludge produced that plant, which has been alive for two months. What is it, and how is it even surviving?
This setup has an incandescant bulb, 2.0 uvb bulb (Temperate Climate), waterflow, and bubblers in the water. The water is not directly in contact with the land portion. (I don't want to unplug my time controller because I don't have a battery to save the life on the timer, and I don't want to unplug each individual plug because... I'm just going to put it back in again in a few weeks anyway.) Because it's sitting on the dead moss, I'm assuming they're just spores. But I don't get why they haven't died off after the 2 weeks they've been alive.
The first tank will eventually be scrapped. The second tank is well overdue for a dramatic make-over, which I intend on doing when I finish my job for the summer. I'll have details on what I'd like to do in a Paludarium post.
And also, are these plants salvage-able?