Hi, I found these little guys abandoned in a small tray, but somehow they survived in deep shade. I think they are bamboo palms, but not sure. What transplanting and care instructions? I'm new to palms. Thanks for your help.

Hey, welcome to the forum.. They are some type of Chamaedorea species; hard to say which, since they look a bit worse for wear. They should transplant easily, & good, regular watering will get them to spring back to life. Filtered light is preferable to deep shade if possible. My guess, since it appears they're suckering, is C. sefreizii. (sp?)

Bret

believe it or not lots of palms like shade and most prefer shade until they've matured a bit. I learned it the hard way with my majesty palm which was burnt pretty badly since it was small and went from indoor to directly outdoor but now a over a year later the guy sits in 10 hours of full sun all day long and is perfect with almost no burnt tips

Thanks Bret and Kenney.

Since I want to use them indoors what potting medium should I use and how many in a pot; crowded or not?

Ohh...why the lines through the text? Sorry about that,

Chamaedorea seifrizii is a classic indoor palm, but for you, it's hardy outdoors (mine have survived 26 degrees, no harm at all. I haven't dealt with indoors, but most "potting soil" from stores is mostly peat, and turns to brown goo after a while. You can try adding perlite or vermiculite, expanded clay balls (popular with orchid enthusiasts) or just add some sand. So long as they have good drainage, these palms are likely to tolerate a lot of mistakes.