Looks like a seedling maidenhair fern. If it is it will be happiest with wet feet. Both mine have been living in a tray of about half inch water. One of them started life in a potted carnivorous plant I got from a vendor. CPs are bog plants and that little guy grew like a weed. They don't like to dry. Or you can water them daily. A few days without water and they shrivel up.

I will keep that in mind! Hopefully that's not what it is then, i dont think my dendrobium would like wet feet so much. But I will mist it in the meantime, and we will see when it gets a little bigger :-) I have no idea how I might go about removing it anyway, whether it is tiny or after it grows a bit. How big is yours now?

I removed mine from the pot they came in when they were about the size of yours but they weren't tangled in close to the plant. One of them is about 10" across and the baby is about 6" across. But on re-looking at your photo I am thinking it may also be a polypody species. Email me a closer photo. Tiny baby fern leaves can look different than the grown up ones. If it is a polypody (that's the family that also includes what are commonly known as rabbit foot ferns) it will be fairly happy with an orchid culture. They come from a drier environment than maidenhairs. I have 4 polypodys and I soak them about once a week. If yours is a polypody when it gets a little older it will grow these cute fuzzy feet on the surface of the soil. That's where new leaves will grow from.