Safe: Small, peaceful fish and invertebrates. Good choices are:

• Other dwarf shrimp
• Small, peaceful fish
  • Asian Stone Catfish
  • Bushynose Plecos
  • Corydora Catfish
  • Danios
  • Guppies
  • Hillstream Loaches
  • Otocinclus (safe to keep with breeding shrimp as well)
  • Ram Cichlids
  • Tetras (small tetras only)
• Filter Shrimp
  • Vampire Shrimp
  • Singapore Flower Shrimp
• Snails (all types)
  • Ramshorn Snails
  • Mystery Snails
  • Nerite Snails
  • Sulawesi Snails (aka Rabbit Snails)

Unsafe: Any fish or invertebrate large and/or aggressive enough to eat a dwarf shrimp. Examples:

• Angelfish
• Barbs (the aggressive kinds)
• Bettas
• Glo Tetras
• Catfish (large)
• Cichlids
• Crayfish (most types)
• Discus
• Pacu
• Plecos (large) 
• Goldfish
• Gourami