Ok! Thanks, Kara, for the ID and advice :D

I don't know. Looks to me like the juvenile form of Hylocereus undatus, the dragon fruit cactus. They are very different from the later plant.

I had only 1 dragon fruit, but new growth looked fatter, spines much farther apart and with 3ribs (can't tell for sure how many on the Op plant):

Definitely not a dragon fruit. I know what your talking about does kinda look like it, but the Op is different. Can't explain of course;). I've seen hairy little Rhipsalises like the OP:).

Rina and Kara, you are both right, I spoke too soon. Not Hylocereus undatus. Rina, what I meant was more the seedling form, see the left plant here:

https://plantsam.com/hylocereus-undatus/

I am not quite sure about the Rhipsalis either, Rhipsalis baccifera subsp. horrida then I guess? Close, but to my eyes the ribs and the tips are different. There is also Selenicereus testudo, often sold in hanging baskets. It is very close too.

http://www.ourbuckeyefarms.com/store/p125/Selenicereus_Deamia_testudo,_Great_houseplant,_Beautiful_Hanging_Basket.html

Grrrr, dunno.

I think I'm seeing it differently then you are;). To me the fuzzies on the OP aren't white and bristly. The OP's to me look more like hair and not sticking out. I'm having a hard time explaining what I see:). I had a Selenicereus Testudo. Definitely not that. Mine died frost got to it:(

Yes, I see the difference in fuzzies too. But the Rhipsalis doesn't quite match either. As I said: grrrr. I like them all in boxes ;-).

Gdinie

Maybe I am wrong. I didn't grow it from seeds, was given to me so I only know young shoots. The photo you posted shows that I spoke too soon :)

I spoke too soon too, so join the club ;-). I used to have one in another life. Still no perfect match found IMHO.

Oh so it might not be a rhipsalis? It does branch like a rhipsalis but I can't google a ripsalis that looks like it either. It has four 'ribs' ; if it's cut, the cross section would be square. Here's another pic but it's almost the same

I still think it's a Rhipsalis, but I will have investigate more.

Your plant has some similarities to Rhipsalis baccifera ssp. horrida. Don't mind the color of the rhipsalis in the pic. That has to do with sun, but the growth is similar:).

http://www.cactuseros.com/Especie/21337/Rhipsalis_baccifera_ssp._horrida.html

Kara, you are right. I had looked at other pictures of the same Rhipsalis, as I mentioned above, but those were less similar. Different clones, I guess. There is also a picture of a flower at the website you linked to, and that clinches it as a Rhipsalis. Good eye.