Are there branches and things in the water for it to crawl out?
White Cloud Mountain Minnows are beautiful. Male Guppies and/ or Endlers.
Is this a stock from company Paludarium or added water into reptile enclosure. Did you retrofit to hold more water?
Long back I bought a Zoo Med Paludarium but it was pretty small 12" x 12" x 24" tall appx 8" tall for the water - holds just 4G.
Do you know how many gallons yours is?
If it is small, I would try Male Endlers.
New to FW fish? First tank in a long time or EVER??? Need some info on keeping fish?
Start here - Aquarium Advice Article
FW Favorites right now Clown Loaches, any shrimp - SW Vase Red Mangroves