Blue Diamond Shrimp (Neocaridina davidi) — Grade A

The Blue Diamond Shrimp (Neocaridina davidi) is a striking, deep-blue color morph of the popular cherry shrimp family. Prized for their vivid sapphire coloring and peaceful nature, these hardy freshwater invertebrates are perfect for beginners and make exceptional algae grazers and cleanup crew members in planted aquariums.

Looking for more invertebrates? Browse our Invertebrates and Freshwater Supplies.

• Tank Size: 5 gallons minimum
• Temperature: 65–80°F (18–27°C)
• pH: 6.5–8.0
• GH: 6–12 dGH
• Diet: Omnivore — biofilm, algae, blanched vegetables, and quality shrimp pellets or wafers
• Temperament: Peaceful — completely non-aggressive and safe with all tank mates
• Max Size: 1.5 inches (3.5 cm)
• Copper Sensitivity: Yes — avoid copper-based medications and fertilizers containing copper

Blue Diamond Shrimp are peaceful and thrive in species-only tanks or alongside small, non-aggressive tank mates. Most fish will prey on dwarf shrimp, so choose companions carefully.

Good tank mates: Other Neocaridina shrimp, snails, small rasboras, otocinclus, pygmy corydoras

Avoid: Bettas, cichlids, gouramis, angelfish, and any fish large enough to eat them

How do I keep their blue color vibrant?
Provide a dark substrate, varied diet rich in carotenoids and spirulina, and stable water parameters. Selective breeding over generations also intensifies color.

Can I mix Blue Diamond Shrimp with other Neocaridina colors?
You can house them together, but they will interbreed and offspring may revert to wild-type brown coloring over several generations.

How many should I start with?
Start with at least 6–10 to establish a comfortable colony. A 10-gallon tank can support 30–50 shrimp.

Will they breed in my tank?
Yes — Neocaridina shrimp breed readily in stable, well-maintained tanks. Females carry eggs for about 30 days before releasing fully formed shrimplets.