Red Rili Shrimp (Neocaridina Davidi )

The Red Rili Shrimp (Neocaridina davidi var. "Red Rili") is a stunning and popular freshwater shrimp, selectively bred from the Red Cherry Shrimp for its unique two-toned pattern. It is prized for its vibrant colors, hardiness, and ease of care, making it a favorite among beginners and experienced aquarists alike .

Here are the key details you need to know about keeping them.

 Quick Overview & Origin

Appearance: As their name suggests, they have a vibrant red head and tail, while the middle section of their body is strikingly transparent . This "Rili" pattern is their defining characteristic. Females are typically larger, more intensely colored, and have a curved underbelly .

 Water Parameters & Tank Setup

Red Rili shrimp are adaptable, but stable conditions are crucial for their health and breeding success.

Key Tank Requirements:

• Cycled Tank: The aquarium must be fully cycled with zero ammonia and nitrite. Nitrates should be kept low .

• Substrate: A fine-grained substrate is ideal for their natural foraging behavior .

• Aquascaping: Provide plenty of live plants (like Java moss), driftwood, and rocks. These create hiding spots, especially for young shrimp, and provide a surface for biofilm to grow, which is their main food source .

• Filtration: A sponge filter is recommended as it is safe for baby shrimp and provides additional grazing area .

 Diet & Feeding

Red Rili shrimp are omnivores and excellent scavengers.

• Natural Food: In a planted tank, they will spend their time eating algae and biofilm .

• Supplemental Food: You can supplement their diet 2-3 times a week with shrimp-specific pellets, algae wafers, and blanched vegetables like zucchini or spinach .

• Important: Avoid overfeeding, as leftover food can quickly foul the water. Remove any uneaten food after a few hours .

 Breeding & Tank Mates

Breeding: Breeding Red Rili shrimp is straightforward. If you have males and females in a healthy, stable tank, they will breed readily .

• Mating: Females release pheromones after molting to attract males .

• Gestation: A "berried" (egg-carrying) female will carry 20-40 eggs under her abdomen for about 3-4 weeks .

• Shrimplets: The eggs hatch into tiny, fully formed versions of the adults with no larval stage. They will feed on biofilm in the tank .

Tank Mates:

• Good: Peaceful community fish like small tetras, other dwarf shrimp (e.g., Amano shrimp), and snails (e.g., Nerite snails) .

• Avoid: Any large or predatory fish that will see the shrimp as food .

• Important: Do not mix Red Rili shrimp with other Neocaridina color varieties (like Blue Dream or Yellow Cherry). They will interbreed, and the offspring will likely lose their vibrant colors and revert to a dull "wild type" (brown/grey) coloration .