• Ninja Shrimp (Caridina serratirostris)
  • Ninja Shrimp (Caridina serratirostris)
  • Ninja Shrimp (Caridina serratirostris)
  • Ninja Shrimp (Caridina serratirostris)
  • Ninja Shrimp (Caridina serratirostris)
  • Ninja Shrimp (Caridina serratirostris)

Ninja Shrimp (Caridina serratirostris)

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This rare and exceptional shrimp is best known for its remarkable color-changing ability!

The Ninja Shrimp (Caridina serratirostris) is a somewhat uncommon and very colorful shrimp species that is fairly widespread across the Indo-Pacific, from Madagascar to many Pacific islands. This shrimp is most notable for its incredible color-changing ability when it is in good health. It can change to a wide variety of colors, particularly shades of red, orange, brown, and cream.

The Ninja Shrimp, like most shrimp, lives in large colonies and spends most of its time foraging for food. It is a voracious eater of algae in the aquarium and is not only a very active, outgoing species, but it is also very useful as a solution to fighting algae issues. It aggressively feeds on most varieties of algae and, in appropriate numbers, will often eradicate even the most persistent algae growth on plants and other aquarium decorations. It is also very effective in eating decaying plant matter, such as shed leaves and needles of aquarium plants. However, it does not bother or damage ornamental plants.

Care for the Ninja Shrimp is fairly simple and straightforward. They do not require the more acidic pH of their "bee-type" Caridina cantonensis cousins. However, unlike most other dwarf shrimp, they prefer relatively warm water. Their water requirements are otherwise very similar to Neocaridina shrimp.

The Ninja Shrimp is a low-form breeder that requires varying degrees of salinity for its fry to develop, but adult-form specimens thrive in freshwater. It is a scavenger and is very useful in planted and nano aquariums. The bulk of its diet is biofilm, algae, and decaying plant matter so it will work diligently to clean up detritus in any aquarium. It feeds constantly, so it displays constant activity. In a less mature aquarium, it should be fed high quality flake and mini pellet dry foods with high algae/spirulina/plant content. GlasGarten Bacter AE is also a superb food, as it will dramatically increase biofilm growth in the aquarium.


What We Like About This Shrimp:
  • Incredible color-changing ability
  • Relatively rare
  • Completely peaceful disposition
  • Safe with all plants
  • Excellent scavenger
  • Minimum tank size2 gallons, recommended 10 gallon minimum for a colony
  • Temperature: 72° - 80° F (22° - 27° C)
  • pH: 6.5 - 8.0
  • dGH: 6 - 15
  • dKH: 0 - 10 
  • TDS: 180 - 400
  • Diet: Scavenger that feeds continually.  Requires very little feeding in a well-established aquarium containing algae, biofilm, or decaying plant matter. In less mature aquariums, high quality dry foods with high plant content can be fed multiple times daily. 
  • Aquatic Arts Snowflake Premium Shrimp Food Aquatic Arts Pollen Granules Premium Shrimp Food are excellent supplements to the diet of any shrimp. Give them a try and your shrimp will thank you for the tasty treat! 
  • Natural Botanicals are a great way to boost the immune system of your shrimp and they will also provide lots of essential biofilm for the shrimp to graze on.
  • Social behavior: Peaceful
  • Origin: Indo-Pacific and Western Pacific
  • Average adult size: 1 inch (2.5 cm)
  • Average purchase size: 1/2 to 1 inch (1.3 to 2.5 cm)


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