Neocaridina davidi (Blue Dream / Blue Velvet Shrimp)

Overview

Blue Dream and Blue Velvet shrimp are among the most sought-after color morphs of the popular Neocaridina davidi species. With their striking, deep blue coloration, they provide a beautiful contrast against green aquatic plants and dark substrates. As dwarf shrimp, they are peaceful, highly active, and serve as excellent cleanup crews for freshwater aquariums.

Distribution and Habitat

While the wild Neocaridina davidi originates from the freshwater streams and ponds of Taiwan, the Blue Dream and Blue Velvet variations are entirely captive-bred. Through years of selective breeding—often stemming from Carbon Rili or Blue Rili lineages—aquarists have stabilized these brilliant blue genetics. They thrive in environments that mimic their ancestors' slow-moving, plant-rich natural habitats.

Description of Blue Dream Shrimp

These shrimp typically reach a maximum size of 1 to 1.5 inches. The primary difference between "Blue Dream" and "Blue Velvet" is often the lineage and the exact shade of blue, though the terms are frequently used interchangeably. Blue Dreams generally exhibit a deeper, darker, almost opaque blue, while Blue Velvets may have a slightly lighter, more translucent azure hue. Females are generally larger and more vibrantly colored than males, developing a visible "saddle" when ready to breed.

Keeping and Caring for Blue Dream Shrimp

Caring for these blue beauties is relatively straightforward, making them a fantastic choice for beginners. They are highly adaptable to a range of water parameters, provided the water is clean and stable. A mature, well-established aquarium is crucial, as they rely heavily on naturally occurring biofilm and algae for sustenance.

Tank size:

A minimum tank size of 5 gallons is recommended for a small starter colony. However, a 10-gallon tank or larger is ideal, as larger water volumes are easier to keep stable and provide more grazing surface area for the growing population.

Water Parameters:

Stability is the golden rule when it comes to water parameters. While Neocaridina shrimp are hardy, sudden fluctuations can cause molting issues or stress.

Temperature

They thrive in temperatures ranging from 65°F to 80°F (18°C - 27°C). Room temperature is often sufficient, but a heater can help maintain consistency in cooler climates.

pH

A pH level between 6.5 and 8.0 is optimal. They are quite adaptable and can do well in slightly acidic to moderately alkaline water.

Hardness

General Hardness (GH) should be between 4 and 8 dGH, and Carbonate Hardness (KH) between 3 and 15 dKH. Adequate calcium and magnesium levels are essential for healthy molting.

Ammonia, Nitrite, Nitrate

Ammonia and Nitrite must always be at 0 ppm. Nitrates should be kept as low as possible, ideally below 20 ppm, through regular water changes and the inclusion of live plants.

Lighting

Standard aquarium lighting is perfectly fine. Lighting should be tailored to the needs of the live plants in the tank, which in turn will provide shade and comfort for the shrimp.

Water flow

A gentle water flow is preferred. Sponge filters are highly recommended as they provide gentle filtration, harbor beneficial bacteria, and prevent baby shrimp from being sucked into the filter motor.

Decorations and Plants

Live plants are highly beneficial. Mosses (like Java Moss), floating plants, and fine-leaved plants offer excellent hiding spots for molting shrimp and shrimplets. Driftwood and leaf litter (such as Indian Almond leaves) release beneficial tannins and promote essential biofilm growth.

Adding the Blue Dream Shrimp

When introducing your shrimp to their new home, always use the drip acclimation method. This slow process, taking 1 to 2 hours, allows them to gradually adjust to the new temperature and water chemistry, significantly reducing shock and mortality rates.

Some Feeding Tips

While they constantly graze on biofilm and algae, their diet should be supplemented 2-3 times a week. Offer high-quality shrimp pellets, blanched vegetables (like zucchini, spinach, or cucumber), and specialized shrimp lollies. Remove any uneaten food after a few hours to prevent water quality degradation.

Dangers of Blue Dream Shrimp in the Planted Aquarium

There are virtually no dangers to keeping Blue Dream shrimp in a planted aquarium. They are entirely peaceful and will not damage healthy plants. They only consume decaying plant matter, algae, and biofilm, making them excellent caretakers of your aquascape.

Tank mates & Compatibility

These shrimp are peaceful and defenseless. The best tank mates are other peaceful invertebrates like snails (Nerite, Mystery, Ramshorn). If keeping them with fish, choose small, peaceful nano species such as Otocinclus, Pygmy Corydoras, or small Rasboras. Avoid large, aggressive, or predatory fish like Cichlids, Bettas, or Goldfish, which will view the shrimp as a quick snack.

Breeding Blue Dream Shrimp

Breeding is incredibly easy and will happen naturally if water parameters are pristine and both sexes are present. Females will carry eggs under their tails for about 30 days until they hatch into miniature, fully-formed shrimplets. Ensure there is plenty of biofilm and hiding spaces (like dense moss) for the babies to survive and grow.

Conclusion

Blue Dream and Blue Velvet shrimp are a spectacular addition to the freshwater hobby. Their intense coloration, active grazing habits, and ease of care make them a joy to keep. Whether you are setting up a dedicated shrimp breeding tank or adding a splash of blue to a peaceful community aquascape, these resilient little invertebrates are sure to captivate you.