I have a 55 planted tank with nano fish and neocaridina shrimp myself. Here is my stocking. It's working perfectly:
Hyphessobrycon negodagua
Got 12 a few months ago. After less than 24h in my tank, they had already started spawning!
I'm currently keeping them in a 55 gallon with neocaridina shrimp, 2 vampire shrimp, mistery snails, 12 Cardinal tetras, 12 chilli rasboras, 12 celestial pearl danios, a sae, 6 hillstream loaches, 2 l168 plecos, 6 longfin albino bristlenose plecos and hundreds of guppies (I started with a trio).
Despite all of the fish and invertebrates, everyone seems to be doing great, and I sell around 100 neocaridina shrimp from that tank every 3 months.