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Blue Leg Poso Shrimp

Caridina caerulea

Also known as: Blue Leg Poso, Poso Blue Leg, Blue Poso Shrimp, Sulawesi Blue Leg

1-2 yr life
0.7-1" size
Moderate

Water Parameters

TDS 80-180 ppm
Optimal: 100-150
GH 4-8 dGH
Optimal: 5-7
KH 3-7 dKH
Optimal: 4-6
pH 7.5-8.5
Optimal: 7.8-8.2
Temp 79-86F
Optimal: 81-84F (27-29C)
Optimal
Acceptable

Requirements

RO Water Required
Active Substrate Not Needed
Min Tank Size 10gal / 38L
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About Blue Leg Poso Shrimp

Blue Leg Poso shrimp are widely regarded as the best 'gateway' species into Sulawesi shrimp keeping. Their distinctive blue legs against tan or reddish-brown bodies create a unique appearance, while their relative hardiness and better breeding success make them more forgiving than other Sulawesi species. For hobbyists wanting to experience the exotic world of Sulawesi shrimp, Blue Leg Poso is the recommended starting point. Endemic to Lake Poso in Sulawesi, Indonesia, these shrimp share the general Sulawesi requirements: high pH, warm temperatures, and abundant biofilm. However, they're notably more adaptable within those parameters than sensitive species like Cardinals or Harlequins. Experienced Sulawesi keepers often describe them as 'the Neocaridina of the Sulawesi world' - still requiring specialized care but the most forgiving option available. The blue leg coloration that gives this species its name is their most distinctive feature. While the body displays earthy tones of tan, brown, or reddish-brown, the legs show striking blue coloration ranging from subtle to vibrant depending on the individual and conditions. Combined with their relative ease of keeping (for Sulawesi), this unique appearance makes them popular among serious shrimp hobbyists ready to venture beyond typical Caridina and Neocaridina species.

Quick Facts

Difficulty
advanced
Lifespan
1-2 years
Adult Size (Female)
0.7-1"
Adult Size (Male)
0.6-0.8"
Breeding
moderate
Min Tank Size
10gal

Water Parameters for Blue Leg Poso Shrimp

Maintaining stable water parameters is crucial for the health and coloration of Blue Leg Poso Shrimp. Sulawesi shrimp have unique requirements with higher pH and temperature needs compared to other dwarf shrimp.

Parameter Range Optimal
TDS 80-180 ppm 100-150 ppm
GH 4-8 dGH 5-7 dGH
KH 3-7 dKH 4-6 dKH
pH 7.5-8.5 7.8-8.2
Temperature 79-86°F (26-30°C) 81-84°F

Tank Setup for Blue Leg Poso Shrimp

  • Use inert substrates (lava rock, crushed coral, limestone)
  • Include plenty of rock surfaces for biofilm development
  • Strong lighting promotes aufwuchs growth
  • Moderate water flow replicates lake conditions
  • Mature tank (3+ months) recommended before adding shrimp

Care Tips for Blue Leg Poso Shrimp

  • RECOMMENDED first Sulawesi species - easiest of the group
  • Still requires Sulawesi parameters: HIGH pH (7.8-8.2), HIGH temperature (81-84F)
  • More forgiving within Sulawesi range than Cardinals or other sensitive species
  • RO water remineralized with Sulawesi minerals is required
  • DO NOT use active substrates - use inert options
  • Tank should be mature with abundant biofilm
  • Acclimation still needs to be slow (3-4 hours minimum)

Feeding Blue Leg Poso Shrimp

  • Biofilm is the primary food source
  • Graze on aufwuchs covering rock surfaces
  • Supplement sparingly with quality shrimp foods
  • Strong lighting encourages biofilm growth
  • Don't overfeed - biofilm should be dietary foundation

Breeding Blue Leg Poso Shrimp

Difficulty
moderate
Clutch Size
12-28 eggs
Gestation
25-35 days
Special Requirements
Blue Leg Poso shrimp are considered the easiest Sulawesi species to breed. They produce larger clutches than Cardinals and have better shrimplet survival rates. This makes them the recommended first Sulawesi species for keepers new to the group.
  • Easiest Sulawesi species to breed in captivity
  • Larger clutches than Cardinals (12-28 eggs)
  • Better shrimplet survival rates than most Sulawesi
  • Good species for learning Sulawesi breeding techniques
  • Colony growth still slower than Neocaridina but faster than other Sulawesi

Blue Leg Poso Shrimp Grading System

Blue Leg Poso Shrimp are commonly graded based on color intensity, coverage, and pattern quality. Higher grades typically command higher prices and are the result of selective breeding.

Grade 1 of 3

Standard Blue Leg Poso

Visible blue coloring on legs. Blue intensity may be subtle.

Characteristics

  • Blue legs visible
  • Decent body coloration
  • May have subtle blue
  • Good health indicators
Typical Price $10-18 each
Grade 2 of 3

High Grade Blue Leg

Strong blue coloration on legs with good body color contrast.

Characteristics

  • Strong blue legs
  • Good body contrast
  • Clear blue coloring
  • Attractive appearance
Typical Price $15-30 each
Grade 3 of 3

Premium Blue Leg

Maximum blue intensity on legs with excellent overall appearance.

Characteristics

  • Maximum blue saturation
  • Excellent contrast
  • Show quality
  • Premium specimens
Typical Price $25-50+ each

Grades listed from lowest to highest quality

Common Problems with Blue Leg Poso Shrimp

  • Still fails if kept in typical Caridina parameters (low pH, cool temps)
  • Insufficient biofilm in new tanks
  • Parameter instability causing stress
  • Rushed acclimation from shipping
  • Blue leg color may fade under stress - recovers with good conditions

Troubleshooting Blue Leg Poso Shrimp

Sulawesi shrimp are very sensitive and require pristine, stable conditions. Here are common problems to watch for:

View all troubleshooting guides

Blue Leg Poso Shrimp FAQ

Track Your Blue Leg Poso Shrimp Parameters

Stop guessing. Start tracking. ShrimpKeeper gives you species-specific parameter ranges, instant diagnostics, and historical graphs for your Blue Leg Poso Shrimp colony.