Blue Bolt Shrimp (Caridina cantonensis)
Blue Bolt Shrimps are a type of Taiwan Bee Shrimp. They are very good looking and are a fantastic cleanup crew for the tank. The combination of spectacular colours and cleaning functions makes them one of the most preferred ornamental species of freshwater invertebrates.
Blue Bolt Shrimp aren't as hardy as their Neocaridina cousins and can be sensitive to poor water conditions.
Like all Shrimp, Blue Bolts need plenty of hiding places in the aquarium to feel secure. They also like to have different kinds of surfaces to forage on. Plants like Java Moss will be much appreciated and are not difficult to grow and keep.
Blue Bolts are characterised by a brilliant blue upper section of the dorsal shell that gradually turns into a white body. The colouration of the dorsal shell can range from intense deep blue to light sky colour with varying transparency. You may also find these Shrimp with white spotting, especially on the tail.
Although Blue bolt shrimp do not have a complicated system of gradation, it still exists. Generally speaking, the more blue coverage with the more excellent opacity, the higher the grade is, and the bigger the price tag for the Shrimp.
|Scientific Name||Caridina cantonensis|
|Other Names||Taiwan Bee, Extreme Blue Bolt, Blue Caridina|
|Aquarium Level||Bottom - Middle|
|Difficulty||Beginner - Intermediate|
|Best kept as||Groups 10+|
|Lifespan||1 - 2 years|
|Temperature||68 - 72 ℉ (20 - 22.2 ℃)|
|PH||6.5 - 7.8|
|GH||3 - 8|
|KH||1 - 5|
|TDS||75 - 150|
Blue Bolt Shrimp is an artificial colour morph of the Caridina Cantonensis, so it is not possible to find Shrimp with such colouration in the wild.
However, wild Caridina Cantonensis is widespread and abundant in Guangzhou, Yangjiang of Guangdong Province, Hong Kong the Nan'ao island as well as northern Vietnam in southern China.
These Shrimp inhabit shallow, slow to fast-moving clean, soft acidic water in mountain streams and creeks that is covered in dense vegetation from fallen leaves and branches from trees that overhang them.
Other Caridina of interest
Diet & Feeding
Feeding Blue bolt shrimp is easy. Like all Shrimp, they are scavengers, and They will eat just about any food they manage to find in the tank. Therefore, in a well-established aquarium, they will often find enough supply of food from algae, decayed vegetation and biofilm by themselves.
However, this does not mean there is no need to feed them at all if you want them to thrive as well as breed. It would be ideal if you supplemented the Blue Bolts diet with common shrimp foods. Algae wafers are a favourite.
To add some variety to their diet, and improve their immune system, provide them with some Alder Cones or Indian Almond Leaves. They will greatly accept the odd treat of blanched vegetables such as lettuce, broccoli and spinach also.
Blue Bolts become sexually mature around 3 to 4 months old. The females will moult before mating and release a specific chemical substance into the surrounding water to attract the males. Which lets the males know that the female is ready to spawn. Which makes the male Shrimp swim erratically around the tank, seeking her out.
The amount of eggs produced per female depends on the size of the female itself. The females will start to carry a clutch of eggs under her tail. The female will retain the eggs for the entire time necessary for incubation which is usually around 4 to 5 weeks.
You will see her tumbling the eggs frequently with pleopods.
After the incubation period, the Blue Bolt female will release around 30 to 40 fully developed shrimplets that look like miniature replicas of the adult shrimp no more than 2 mm in length and are entirely independent.
Do not worry about their colouration at this stage. The shrimplets will become more intense in colour as they mature.