Do shrimp crossbreed? Separate colour forms, species and hybrids

Different colour forms of one species can produce offspring together. With red and blue Neocaridina davidi, for example, this does not establish a cross between two species. An interspecific hybrid is a different claim requiring reliable parental identification.

Distinguish three situations

• Two N. davidi colour forms: combining them may change colour selection. Trade names do not predict one fixed outcome, such as exclusively wild-type young or a blend of the parental colours.
• Selected Caridina hobby lines: sources describe bee/tiger crosses and Taiwan Bee lines, among others. This does not establish a verified pedigree or fixed inheritance percentages for every batch.
• Animals of uncertain identity: a different sales name cannot guarantee that crossing is impossible.

The scientific description of two species does not validate an arbitrary online crossbreeding chart. For a specific crossing claim, ask about animal identification, recorded parents and actually observed offspring. One differently coloured juvenile photograph is insufficient.

Let your aim determine the decision

If preserving a recognisable strain or passing on animals with traceable ancestry matters, keep groups separate and record origin, transfers and selections. If you mainly want mixed colours to observe, accept that offspring may look different. Different colour alone does not make an animal unhealthy or justify poor housing.

Not expecting a cross does not establish that cohabitation is sensible. Water, food, current and space must also fit. Use the compatibility check. Avoid combining animals merely to see what happens when their care requirements remain unclear.

Sources and scope

• UF/IFAS: Cherry shrimp, Neocaridina davidi
• Garnelenhaus: Neocaridina colour lines and reported crosses
• Garnelenhaus: Taiwan Bee / Shadow Bee
• Klotz and von Rintelen (2014): Caridina logemanni
• Klotz and von Rintelen (2014): Caridina mariae

UF/IFAS supports N. davidi colour forms. Hobby sources describe lines and observed crosses without establishing every sold animal’s pedigree or inheritance. No complete experimental crossing chart is claimed.