It looks kind of like the spoilage type, but it is stickier and has longer strands. I recently used an organic fertilizer, could that be rotting and causing this? The thing has always been inside and has only had a bean plant grow and some radishes and carrots. The holes with the stuff have basil seeds in them.

Yes, something like Milorganite? I could see that molding up like this. If so, I'd just break it up with a rake or something. No big deal, I don't think.

+oM

I think it is starting to hit me allergies, do you know a way to kill it?

If it's worse in places you watered more, cut back on watering. It looks like there is a lot of bark in the soil. It's not unusual for things to grow on damp soil amendments, even in the bag. Most likely harmless natural composting occurirng.

Looks a lot what I see when I use rabbit pellets as fertiliser - once it gets wet & starts to break down. You might try simply covering it up w/ some compost....

Try putting a fan near it. Might need more air circulation.

Jane

Or just break it up like I said earlier-shouldn't be difficult to stir things up. Also as i said above, those wood-decomposer fungi, which are indispensible, are typically much more ropey strands, not this fine mesh of mycellia. Same with bark-those fungi have much thicker mycellia than we're seeing here. That's some other organic material being decomposed.

+oM

Do you think it could be the fertilizer?