As with most of the epiphytic/'jungle' cacti, they are relatively easy. Good hanging plants; keep slightly moist in the growing season, and let it dry out more in the Winter. Should have a well-draining mix as with all cacti. Propagated easily by leaf cuttings in sandy soil.

A Tradescantia pallida that wants more sun.

Agreeing w/ Popmama's IDs above. Also echoing opinion they look very healthy!! In the last pic, those 2 leaves in the lower right hand corner, ALMOST look like they could be Scindapsus, from the rounder leaf shape. I could see where one might ask that. Great job!

looks like a plant with a larger future potential.. in a small propagation pot .... it is probably a good idea to repot it soon.. before the roots get all tangled up ... get some good media ... and a larger pot with drainage .... and repot it.. before the roots get to tied up in the small pot ... if you want guidance on media.. ask ... generally speaking.. when a tag says simply houseplant or tropical.. they are telling you common houseplant rules apply.. and the plants are so easy.. you probably dont need any further info ... and i would guess ... tropical means it likes water.. as compared to the tag that says... succulent ... it doesnt need to be much harder than that ... all that said.. knowing the specific cultivar name.. is knowledge.. and kowledge is power ... so dont get me wrong ... ken