Difference between revisions of "Caridina cf. cantonensis"

Revision as of 17:47, 2 September 2020

Bee Shrimp

Crystal Red Shrimp

Caridina cantonensis sp.

Difficulty

Moderate

Min. Tank Size

19 Litres (5 US G.)

Size

2-3 cm (0.8-1.2")

sg

Freshwater

pH

6.2 - 7.2

Temp.

20-24.4°C (68 -76 °F)

Water Hardness

1-4 °d

Stocking Ratio

2:3 M:F

Availability

Uncommon

Diet

Omnivore
Other (See article)

Life Span

1-2 years

This animal is available captive bred

Alternative names

Bee Shrimp, Black Bee, Crystal Black Shrimp (original species often called CBS), Crystal Red Shrimp (colour mutation of the Black shrimp often called CRS).

Synonyms

Caridina cantonensis sp. "Crystal Red", Caridina cantonensis sp. "Bee", Caridina cantonensis sp. "Black Tiger", Caridina cantonensis sp "blue", Caridina cantonensis sp. "Golden Bee", Caridina cantonensis sp. "Orange Bee"

Species Notes

There are many selectively-bred colour morphs of the Bee Shrimp, established in 1991, it will commonly be found in stores as the Crystal Red Shrimp or CRS, the red/white variant. It is exactly the same as the Bee Shrimp but is now being bred separately for the colour.

The Crystal Red genetic mutation was discovered in Japan in 1996 and was registered as a trademark in that country. It is like the Crystal Black but with red bands instead

Grading

Crystal Red Shrimp/Crystal Black Shrimp have different grades. In order from lowest to highest, the grades are: C, B, A, S, SS, and SSS. The higher the grade, the more white it has and the more expensive it is. Visit external link below for grading information.

Other Morphs

Other selectively bred morphs are appearing on the market regularly, including the Black Tiger Shrimp with a black body and red eyes. Also the Blue Tiger Shrimp with a very dark blue body and orange eyes.

The Orange Bee Shrimp has very similar markings to the Tiger Shrimp but with a very orange body.

The Golden Bee Shrimp has a solid white/cream body. It may also be called the Golden Crystal Red Shrimp or Snow White Crystal Red Shrimp.

Many of these morphs may be reclassified with their own Caridina names as more is discovered about them.

Sexing

Male Crystal Red shrimp

Female Crystal Red shrimp

The difference in sex is quite obvious in adult animals, especially if one can compare male and female.

• Adult females are 10-30% larger than adult males.
• Females have substantially larger scales on the abdomen (See image on the right)
• Before laying eggs, the female's ovaries are visible in the 'head' and back of the female.

One of the few recognizable characteristics of young females, is the presence of ovaries before their first spawn.

The extended scales of the female form a 'breeding chamber' for the eggs which are carried on the shrimp's swimming legs.

Tank compatibility

A small peaceful shrimp. Best not kept with other members of the Cardinia family due to cross-breeding or aggressive or nippy fish.

Diet

Provide a variety of leaf litter for the shrimp to graze on. Their primary food is the micro-organisms that grows on the submerged leaves. A natural environment with leaf litter, mosses and plants provides the shrimp with everything they need for a staple diet. Feeding commercial foods should be seen giving a treat, not a regular meal.

Feeding regime

Feed sparingly. Commercial packet foods should be given as a treat rather than a stable diet. Feed fresh leaves such as spinach, nettles and dandelion.

Environment Specifics

These shrimp are highly sensitive to water conditions. They need an ammonia and nitrite free tank. Although they will graze on algae, the presence of algae represents a heightened nitrate level, which will also effect the shrimp. They prefer a neutral to slightly acidic pH. Seem to breed well when doing water changes with R/O water. These shrimp prefer lower water temperatures around a low 21.1°C (70°F) . Temperatures about 24.4°C (76°F) stress them out and they won't breed readily and may even die. Many keepers of these shrimp install fan systems to keep the tank cool during warm weather.

Behaviour

A peaceful scavenger.

Identification

An attractive shrimp with many colour morphs, see above.

Pictures

• 

  Head of CRS Shrimp

• 

  Crystal Red Shrimp

• 

  CRS on Crypt. becektii leaf

• 

  SS Grade CRS

• 

  Crystal Black Shrimp

Commercial Sellers

• [1] - USA Seller
• BreedInUSA.com - USA Breeder & Seller
• The Shrimp Spot - Worldwide Seller of Freshwater Shrimp
• British Reds - UK Shrimp Store

External links

• [2] - USA Seller
• Shrimp Keeping - The Home of Freshwater Shrimp
• BreedInUSA.com - US Seller: Crystal Red Shrimp
• Planet Inverts - Crystal Red Shrimp
• Planet Inverts - Black Tiger Shrimp
• Planet Inverts.com Crystal Red Shrimp Grading Guide
• Shrimp Fanatics
• Fish You
• The Shrimp Farm
• Caring and Breeding Crystal Red's
• Breeding CRS shrimp for profit