Blue Bolt shrimp Mixed Grade (Caridina serrata var.)

Meet the Blue Bolt Shrimp (Caridina serrata variant) — one of the most eye-catching members of the Caridina family. Their icy blue and turquoise colouring stands out beautifully in planted tanks, especially against dark substrate. Peaceful, graceful and full of personality, Blue Bolts make any aquarium look like a tiny underwater galaxy.

They do prefer softer, more acidic water, so they’re best suited for shrimp keepers who enjoy creating stable, shrimp-friendly setups.

Tank Requirements

Tank Size: Minimum 20 L (larger volumes help keep water more stable)

Temperature: 20 – 24 °C

pH: 5.5 – 6.8

Water Hardness: GH 4 – 6, KH 0 – 2

TDS: 100 – 160

Filtration: Sponge filter or gentle flow with a pre-filter guard to protect shrimplets

Substrate & Décor:
Active shrimp soil is highly recommended to keep pH stable. Moss, fine plants, cholla wood and leaf litter create grazing zones and hiding spaces while growing biofilm.

Consistency is everything — even small ammonia or nitrite spikes can be dangerous for Caridina shrimp.

Diet

Blue Bolts are omnivores and love:

✅ Biofilm and algae
✅ High-quality shrimp pellets and snowflake food
✅ Blanched vegetables (spinach, zucchini, carrot)
✅ Mineral supplements for strong shells

Feed small amounts a few times a week. They graze constantly, so overfeeding can pollute the water.

Social Behavior

Peaceful and friendly, happiest in groups.
For mixed tanks, choose tiny, calm species only:

✅ Ember tetra
✅ Phoenix rasbora
✅ Pygmy corydoras
✅ Otocinclus
✅ Snails are perfect tank mates

Large or nippy fish will see them as snacks — species-only tanks offer the best breeding safety.

Breeding

Females carry eggs for about 25–35 days.
Babies hatch as perfectly formed miniature shrimp and begin grazing instantly.
Stable, clean water and plenty of biofilm help shrimplets grow quickly and safely.

⭐ Fun Fact

Blue Bolt shrimp were created by selectively breeding Taiwan Bee shrimp lines. The deeper and richer the blue, the more rare and valuable the shrimp — and no two Blue Bolts develop the exact same shade. Every colony is like a living work of art!

Reference: Bubbly Fish – creating underwater wonders.