Blue Bolt Shrimp: Facts And Care Tips (2024)

Scientifically known as Caridina cantonensis
Dr. Mollie Newton
Published by Dr. Mollie Newton PHD| Senior Editor
Last updated: July 16, 2024
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Does your Blue Bolt shrimp seem unhappy? Struggling to get their habitat just right? Our comprehensive care guide is here to help. We’ll cover maintenance, diet, breeding, and more to ensure your shrimp thrive. **Uncover secrets** to making your Blue Bolts happy. Keep reading!

Article Summary

  • Blue bolt shrimp are native to Taiwan and are prized for their vibrant blue color and distinctive white markings.
  • Tank setup should include hiding spots, gentle filtration, active substrate, and adequate aeration and lighting.
  • Molting is a vulnerable phase, and calcium-rich foods can support the shrimp during this process.

Species Information

Blue bolt shrimp (Caridina cantonensis), also known as Taiwan Bee Shrimp, are native to Taiwan and are highly prized for their stunning beauty and unique appearance. These rare freshwater shrimp have become a sought-after species in the ornamental trade due to their vibrant blue coloration and distinctive white markings on their bodies.

Blue bolts also serve essential functions in freshwater ecosystems besides their aesthetics. They contribute to maintaining water quality by consuming algae and other organic matter, effectively cleaning the environment they inhabit.

Blue bolts are a fascinating species that belongs to the mutation of Taiwan Bee shrimp. Taxonomically, they are a variety of the Caridina species. The Caridina genus belongs to the family Atyidae, which consists of freshwater shrimp. Within the Caridina genus are various species and color morphs, each with unique characteristics.

Blue Bolts Habitat

Taiwan Bee Shrimp On a Dense Vegetation
Blue Bolt On a Dense Vegetation

Blue bolt shrimp are freshwater crustaceans native to the mountainous regions of Taiwan. They are typically found in fast-flowing streams and rivers with rocky substrates. The habitat of blue bolts is often characterized by dense vegetation, such as moss and aquatic plants, which provide them with hiding places and a food source.

Taiwan Bee Shrimp Appearance

Blue bolt shrimp are small crustaceans that have a striking appearance. They typically have a deep blue coloration, which gives them their name. They have long, delicate antennae and multiple pairs of legs that they use for locomotion and feeding. They also have a translucent exoskeleton, allowing some visibility of their internal organs.

Blue bolt shrimp typically reach about 2 inches long when fully mature. However, the size of juvenile blue bolt shrimps is significantly smaller. Young blue bolt shrimps are usually around 0.5 to 1 inch in length. As they grow and develop, they gradually reach their full size of 2 inches. As part of the freshwater dwarf shrimp category, these freshwater shrimp add charm to aquariums without taking up much space.

Tank Requirements

Like all shrimp species, blue bolt shrimp have specific tank requirements that must be met to thrive. Here are some key points to consider:

Water Parameters

Blue bolt shrimp require a well-maintained aquarium with stable water parameters. Aquarists need to test and maintain the water quality of freshwater aquarium regularly. The ideal water parameters include a pH range of 6.2-7.8, GH (general hardness) of 3-7, KH (carbonate hardness) of 1-8, and TDS (total dissolved solids) of 75-150. They prefer soft, slightly acidic water.

Tank Setup

Blue Bolt On a Rocky Substrate
Blue Bolt On a Rocky Substrate

Creating a planted tank with hiding spots such as Java moss, other plants, or driftwood is beneficial for keeping blue bolt shrimp. These provide surfaces for foraging and offer shelter.

Filtration options like sponge filters or matten filters can be used to maintain water quality without harming the delicate shrimp. And consider using an active substrate that helps control pH levels in the tank.

Adequate aeration ensures sufficient oxygen, essential for the shrimp’s respiration…

Aeration and proper lighting are crucial for these shrimps as they help to maintain a healthy and thriving environment in the tank. Adequate aeration ensures sufficient oxygen, essential for the shrimp’s respiration, while proper lighting promotes their natural behavior and growth.

Blue bolt shrimp require a minimum tank size of 5 gallons (19L), so a nano tank is suitable for their size. However, larger tanks provide more stability and are generally recommended.

Behavior and Compatibility

Blue bolt shrimp have a peaceful nature and are sociable creatures. They can coexist in the same tank with several compatible shrimp and snail species. Some compatible shrimp species include crystal red, cherry, amano, and ghost shrimp. These species are known to get along well with blue bolt shrimp.

Options such as nerite snails and mystery snails are suitable companions for blue bolt shrimp snails are not aggressive and will not threaten the well-being of the blue bolt shrimp. When selecting tankmates for blue bolt shrimp, it is essential to ensure that the species have similar water parameter requirements and are not overly territorial.

For better water quality maintenance, setting up a shrimp-only tank rather than introducing potential tankmates that may disrupt their breeding process is advisable.

Blue Bolt Shrimp Health

To maintain their health and longevity, providing them with a balanced diet and proper care during molting is important. Let’s explore these topics to learn more.


Blue bolt shrimp have a unique diet as scavengers and omnivores. They are skilled at finding food in a well-established aquarium, but their optimal health needs to provide supplementary foods and offer various options.

…Blue bolt’s optimal health needs to provide supplementary foods and offer various options

It is crucial to consider the frequency and portions to prevent overfeeding, which can lead to water quality issues. Additionally, any uneaten food should be promptly removed to maintain the overall health of the aquarium.

Molting and Care

Blue bolt shrimp undergo the molting process periodically. The frequency of molting can vary based on their age. During this vulnerable phase, providing special care for the shrimp is essential.

Molting is a natural process in which the shrimp shed their old exoskeleton and grow a new one. But it leaves them vulnerable and in need of extra attention.

Shrimp keepers should consider offering calcium-rich foods such as blanched spinach, kale, or cuttlebone to provide the necessary care during molting. These foods can help replenish calcium levels and support the shrimp during molting.


Calcium is essential for the formation of the new exoskeleton. Therefore, it is critical to ensure that blue bolt shrimp can access adequate calcium in their diet.

Additionally, maintaining stable water parameters is crucial during molting. Sudden water temperature or quality changes can stress the shrimp and interfere with molting. Therefore, monitoring and maintaining the shrimp tank’s water conditions is important.

During molting, shrimp may exhibit signs of stress or weakness. It is important to observe them closely during this time and give any necessary assistance. This may include removing aggressive tank mates or hiding spots to reduce stress.

Common Possible Diseases

Blue bolt shrimp are prone to certain diseases. While high ammonia levels are a common concern, there are other diseases that shrimp enthusiasts should be aware of. One common disease is a bacterial infection, manifesting as white or yellow patches on the shrimp’s body. This infection can be caused by poor water quality or injury to the shrimp’s exoskeleton.

Another disease that these shrimps can suffer from is fungal infection. This can occur when the shrimp’s immune system is compromised, or there is an overgrowth of fungus in the tank. Fungal infections may appear as cotton-like growth on the shrimp’s body or fins. It is important to promptly address these diseases to prevent further spread and harm to the shrimp.


Regularly monitoring water parameters, maintaining optimal conditions, and providing a well-balanced diet can help strengthen the shrimp’s immune system and reduce the risk of disease.

Additionally, quarantining new shrimp before introducing them to the tank can help prevent the introduction of diseases to an existing population.


Blue bolt shrimp, a widespread species among aquarium enthusiasts, have a relatively short lifespan of 1 to 2 years. However, with proper care, their lifespan can be maximized. Various factors, such as water quality, diet, and tank conditions, can influence the overall longevity of these shrimp.

By following proper care guidelines, including appropriate feeding practices, understanding molting processes, monitoring water parameters for disease prevention, and providing optimal conditions throughout their relatively short lifespan, you can ensure the health and longevity of your blue bolt shrimp.

Breeding Blue Bolt Shrimp

Blue Bolt Shrimp Care And Breeding

Breeding these shrimps can be a challenging but rewarding endeavor for experienced aquarists. If you’re interested in breeding these beautiful creatures, here are some key points to keep in mind:

Stable Water Parameters

To encourage successful breeding, it’s crucial to maintain stable water parameters within the recommended range. They thrive in slightly acidic water with a pH between 6.2 and 6.8.

Breeding Age And Success Factors

They reach sexual maturity at around six months. It’s essential to have a proper male-to-female ratio in your aquarium for successful breeding. A ratio of one male per three females is generally recommended.

Separating Pregnant Females

Separating pregnant females into a separate breeding tank can significantly increase the survival rates of the offspring. This allows you to provide specialized care and protect the vulnerable young from potential predation by adult shrimp.

Mating Behavior

Female blue bolt shrimps carry eggs under their abdomen until they hatch into tiny shrimplets. The mating behavior of these shrimp involves chemical signaling between males and females, leading to successful reproduction.

Hatched Shrimplets

After hatching, the baby shrimps are tiny and require a well-established aquarium with plenty of hiding spots to ensure survival. Providing mosses or other dense vegetation will offer shelter for the young shrimplets.

Care For Shrimplets

Providing them with a suitable environment that includes ensuring the water parameters are stable. Maintaining good water quality by regularly performing water changes and using a reliable filtration system is also essential.

Shrimplets should be provided with plenty of hiding places, such as moss or miniature caves, to help them feel safe and secure. It’s important to note that shrimplets are highly sensitive to water conditions.

Providing a nutritious diet is vital for their growth and development. Offering a variety of foods, such as specialized shrimp pellets and blanched vegetables, will help ensure they receive the necessary nutrients. Following these care guidelines can help your shrimplets thrive and grow into healthy adult shrimp.

Crossbreeding And Interbreeding Risks

Being cautious about crossbreeding and interbreeding risks is important. These risks primarily arise when different species, such as Caridina and Neocaridina, are housed in the same tank. The main concern is the potential for hybridization.

Hybridization refers to breeding individuals from different species, resulting in offspring that possess traits from both parent species. While this may sound intriguing, it can have negative consequences for the genetic integrity of the blue bolt shrimp population.

Another concern is the potential loss of desirable traits specific to the blue bolt shrimp…

Another concern is the potential loss of desirable traits specific to the blue bolt shrimp breed. If they are bred with other species, there is a risk of diluting or losing these unique traits.

Crossbreeding and interbreeding can lead to less hardy offspring or compromised health. This is because different species may have different requirements and genetic predispositions.

Keeping blue bolt shrimp separate from other species in dedicated breeding tanks is recommended to avoid these risks. This will help maintain the purity of the blue bolt shrimp population and preserve their unique traits.

Frequently Asked Questions

What are the facts about blue bolt shrimp?

Blue bolt shrimp, known scientifically as Caridina cantonensis var. ‘Blue Bolt’ are a striking and sought-after freshwater shrimp species in the aquarium hobby. They are characterized by their vibrant blue and white coloration with intricate patterns, making them a visually appealing addition to aquariums. Blue bolt shrimp are a selectively bred variant of Crystal Red Shrimp originating from Taiwan. They are generally peaceful and have moderate care requirements, making them popular among beginner and experienced shrimp keepers.

Are blue bolt shrimp hard to keep?

Blue bolt shrimp are relatively easy to keep but do require some attention to water quality and parameters. They thrive in stable, well-maintained aquariums with specific water conditions. Maintaining a stable pH, temperature, and water hardness is crucial for their well-being. Additionally, they are sensitive to changes in water quality, so regular water changes and a clean environment are essential. While not the easiest shrimp species for beginners, they can be successfully kept with proper research and care.

How long do blue bolt shrimp live?

Blue bolt shrimp typically have a lifespan of around 1.5 to 2 years, although some individuals may live longer under optimal conditions. Various factors, including water quality, diet, and genetics, can influence their lifespan. Providing them with the appropriate care and a suitable environment can help maximize their lifespan.

What temperature do blue bolt shrimp-like?

Blue bolt shrimp thrive at 72 to 78 degrees Fahrenheit (22 to 26 degrees Celsius). Maintaining a stable temperature within this range is crucial for their health and well-being. Sudden fluctuations in temperature can stress the shrimp and lead to health problems, so it’s essential to use a reliable aquarium heater and monitor water temperature regularly.

What are the parameters for a blue bolt shrimp tank?

Creating a thriving Blue Bolt shrimp tank entails careful attention to specific parameters. These striking Caridina cantonensis shrimp thrive in water temperatures between 72°F and 78°F, with a slightly acidic to neutral pH (6.2-7.5) and soft water (4-6 dGH GH and 0-2 dKH KH). A tank of at least 10 gallons, fine-grained substrate, gentle filtration, hiding spots, and moderate lighting are essential. Maintain zero ammonia and nitrite levels, and offer a diverse diet, including pellets, blanched vegetables, and occasional treats. Consistency and regular monitoring are vital to preserving their vivid blue hues and overall well-being.

Image Reference

  • Content Image – BARCK Aquatics (2023, August 8). Image [Photo]. Facebook.
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