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Species profile

Super Red Crystal Shrimp

Caridina logemanni

Common names: Super Red Crystal Shrimp, Super Crystal Red Shrimp

GradeCaridina Shrimp
Super Red Crystal Shrimp (Caridina logemanni)

Adult size

Up to 3 cm

Typical adult length 2–3 cm.

Up to 3 cm

Countries of origin

  • See all stock from Japan

Good fit for your tank?

Good fit for

  • A mature soft-water tank where you want much more red coverage than a normally banded Crystal Red shrimp.
  • A breeder interested in selecting a rich opaque red body while keeping the small white head, stripe, or tail accents clean.
  • An intermediate keeper who already understands Crystal shrimp care and wants a more specialised red-dominant line.

Think carefully if

  • You expect the name Super Red to guarantee one exact pattern. Full-red, one-stripe, and two-stripe forms may all be sold under related names.
  • You mix them with ordinary Crystal Reds and still expect the colony to maintain very high red coverage without selection.
  • Your tank is warm, new, or maintained with hard tap water. Strong colour does not make this line more tolerant than other bee shrimp.

Appearance and Identification

Captive aquarium-trade line selected for red coloration. Selected bee-shrimp pattern or lineage. Pattern coverage, opacity, grade terminology, and ancestry vary among breeders.

Super Red Crystal is an aquarium line of Caridina logemanni, not a separate species. Names and grades vary between breeders, so judge each shrimp by its colour and pattern, and ask the seller about its line.

Mature females are larger, with a rounder underside, and often show developing eggs behind the head. Males are smaller and slimmer.

Tank Requirements

Suggested filter
About 80–100 litres an hour
Suggested heater
About 25–50 W for this tank
Minimum tank volume
20 litres
Minimum tank length
30 cm
Minimum group size
6
Recommended group size
10
Activity level
Moderate
Flow preference
Low to moderate
Planting preference
Heavily planted
Hiding places
Yes
Jumping risk
Low

Use a mature aquarium of 20 litres or more with an active soil that holds the pH low, sponge filtration, and moss or wood for grazing. These shrimp are sensitive to change, so add them only once the tank is stable, and keep it cool.

Behaviour and Tankmates

Peaceful and active, spending most of the day grazing on biofilm. Shrimp often hide for a while after moulting.

Maintain with conspecifics or peaceful shrimp-safe tankmates where ecological requirements overlap.

Not normally territorial.

Best in a species-only tank, or with very small, peaceful fish that will not eat young shrimp and that enjoy the same soft, cool water. Keep different Caridina lines apart if you want them to stay true, and do not mix them with Neocaridina, which need different water.

Check tankmates for this species

Water Parameters

Temperature
19–24 °C
pH
5.5–6.8
GH
4–7
KH
0–2
TDS
80–160
Stability importance
Very important

Soft, acidic water with almost no KH suits these shrimp. Many keepers remineralise RO water and rely on a buffering soil, which wears out over time. Stability matters as much as the exact numbers.

Parameter caveat
Stable, mature conditions are essential; do not chase exact numbers through abrupt corrections.

Feeding

Diet types
Aufwuchs Grazer, Detritivore, Omnivore
Feeding frequency
Daily
Preferred foods
  • Mature biofilmCore natural grazing resource.
  • Fine complete shrimp foodFeed sparingly and remove excess.

Omnivorous biofilm grazer. Feed mature biofilm, leaf litter, and small portions of quality shrimp foods while maintaining very stable water chemistry.

Monitor body condition and avoid overfeeding or unstable organic waste accumulation.

Breeding

Breeding type
Direct Developer
Breeding difficulty
Moderate
Breeding temperature
21.5 °C
Breeding pH
6.15
Brood or egg count
About 20 to 40 eggs
Incubation
28 days
Parental care
Maternal care
Baby foods
  • Microscopic natural food and mature biofilmExact juvenile or larval requirements depend on the species.

Females carry eggs under the abdomen for about a month, and the young hatch as tiny shrimp with no larval stage. Keep lines separate, because they can interbreed.

Habitat and Origin

Geographic origin
Asia, Japan
Natural habitat
Freshwater Stream
Aquarium contexts
Planted Aquarium, Shrimp Tank, Species-Only Aquarium
Audience level
Advanced, Intermediate

Classification

Profile type
Grade
Genus
Caridina
Family
Atyidae
Species group
Caridina Shrimp

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