Freshwater aquarium shrimp and invertebrates: Neocaridina (red cherry, blue dream…), Caridina (crystal red, bee…), snails (nerites, ramshorns) and other invertebrates. Shrimp breed fast: it's the king category of giving and swapping between aquarists. Pick up a batch of young shrimp near you, swap strains or buy from a hobby breeder. Aquapotarium connects individuals, with no commission. Invasive exotic species (some crayfish) are prohibited.