Crystal Red Grading Guide

Crystal Red Grading Guide

reposting from  ShrimpNow, by

silane

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This is a Crystal Red Shrimp Grading Guide.

Grade SSS (body is white and/or has special head features)


Grade SS (double hino)


Grade S+ (Single hinomaru)


Grade S+ (White portion is large with special features like large tiger tooth, large V-bands)


Grade S (Vibrant red and white, large white portion of white)


Grade A (Vibrant red and white, white portion is slightly bigger then red portion)


Grade B (Thin white or with slight to some or no transparence, white and red portion about the same)


Grade B


Grade C (No obvious white and poor red)

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CRS

CRS

	Common Name Crystal Red Shrimp, Red Bee Shrimp, or CRS Scientific Name Caridina cf. cantonensis sp. "Crystal Red" Adult Size 2.5-3.0 CM or 1.0-1.2 inches Water Temp 20°-25° C or 68°-77° F pH Range 6.5-7.2 Water Hardness Soft Fresh or Salt Water Freshwater Larval Stage None. Young hatch as miniature versions of the adults Difficulty Medium-Hard Egg/Saddle Color Red Behavior Non-aggressive
General Information Crystal Red Shrimp are a recessive mutation of the Bee Shrimp. In the early 90's Hisayasu Suzuki of Japan discovered a single Red Bee Shrimp in a batch of about a thousand. The first Red Bee Shrimp died but several generations later three more appeared. Hisayasu Suzuki was able to successfully breed these shrimp and subsequently named them Crystal Red Shrimp. Appearance Crystal Shrimp have bands of red and white on them. Crystal Red Shrimp have been selectively bred over time to increase the amount and intensity of the white. This has led to a "grading" scale for Crystal Shrimp. Higher grade Crystal Shrimp are generally more sensitive to water conditions and are not as prolific as lower grade Bee Shrimp. This is most likely due to the intense inbreeding required to achieve the higher grades.
SSS Grade SS Grade A - S+ Grade B-C Grade Miscellaneous