Red Rili Shrimp Care Guide: The Two-Tone Cherry Shrimp
Red Rili shrimp show a striking red-and-clear two-tone pattern. Learn their care, why the pattern varies, how they're bred from cherry shrimp, and how to keep the colony looking sharp.
Red Rili Shrimp Care Guide
Last updated: June 2026 | 8 min read

Red Rili shrimp are instantly recognizable: deep red on the head and tail with a clear, see-through midsection. That two-tone "Rili" pattern makes them one of the most popular patterned Neocaridina in the hobby. And like all the cherry-shrimp variants, they're beginner-friendly, the same hardy Neocaridina davidi with a different look.
This guide covers their care and the quirk that makes Rili shrimp interesting to breed: the pattern is variable, so keeping a sharp-looking colony takes a little selective breeding.
Quick Answer
Red Rili shrimp are a patterned Neocaridina davidi with red head and tail and a clear middle. Care is identical to cherry shrimp: stable water (pH 6.5-7.5, temp 65-78°F), a mature planted tank, gentle filtration, and light feeding. The Rili pattern varies between individuals, so selective breeding keeps a colony looking sharp. Don't mix with other Neocaridina colors.
Red Rili Shrimp at a Glance
| Parameter | Range |
|---|---|
| Adult size | 1-1.5 inches (2.5-4 cm) |
| Temperature | 65-78°F (18-26°C) |
| pH | 6.5-7.5 |
| GH | 6-8 dGH |
| KH | 2-4 dKH |
| Minimum tank | 5 gallons |
| Temperament | Peaceful |
| Lifespan | 1-2 years |
| Difficulty | Beginner |
What Is the Rili Pattern?
"Rili" describes the two-tone look: solid color on the front and back of the body with a transparent band through the middle. Red Rili have red ends and a clear center. The pattern was selectively bred from cherry shrimp lines, and there are other Rili colors too (blue Rili, carbon Rili).
The catch is that the Rili pattern is genetically loose. Offspring don't all come out looking the same: some will have a clean two-tone pattern, some will be mostly red (closer to a standard cherry), and some mostly clear. This variability is part of the fun, but it means a colony left alone tends to drift over generations.
Tank Setup and Care
As Neocaridina, their care matches cherry shrimp exactly:
- •Tank: 5 gallon minimum, 10+ for a larger colony
- •Substrate: dark substrate makes the red sections pop. See the substrate guide
- •Filter: gentle sponge filter
- •Plants: moss for grazing and shrimplet cover
- •Maturity: cycle fully first. See how to cycle a shrimp tank
Water Parameters
Stable water in the standard Neocaridina range: temp 65-78°F, pH 6.5-7.5, GH 6-8, KH 2-4, TDS 150-250 ppm. Test weekly with a liquid test kit. See our water parameters guide.
Feeding
Red Rili graze biofilm and algae and need only light supplemental feeding, a little shrimp food or blanched vegetables a few times a week. See what do shrimp eat.
Keeping the Pattern Sharp
Because the Rili pattern varies, a hands-off colony drifts toward muddy or mostly-solid shrimp over time. To keep it crisp:
- •Selectively breed. Keep the best-patterned shrimp and remove ones with poor patterns so the clean two-tone look stays dominant.
- •Buy good stock. Start with shrimp showing the pattern you want.
- •Don't mix colors. Like all Neocaridina, Red Rili interbreed with other color morphs and offspring revert to brown. Keep only Red Rili. See mixing shrimp colors.
Breeding
Easy and automatic in a stable tank. Females carry 20 to 30 eggs that hatch in 3 to 4 weeks. The interesting part is the variable offspring, which is why selective breeding matters more here than with solid-color shrimp. See how to breed cherry shrimp.
The Bottom Line
Red Rili shrimp give you a striking two-tone red-and-clear pattern with the same easy care as cherry shrimp. The one extra consideration is that the pattern varies between individuals, so a little selective breeding keeps your colony looking sharp. Keep their water stable, feed lightly, use dark substrate, and keep them as the only Neocaridina color in the tank.
Related Guides
- •Cherry Shrimp Care - The base species
- •Mixing Shrimp Colors - Preserving pattern and color
- •How to Breed Cherry Shrimp - Selective breeding basics
- •Best Substrate for Shrimp Tanks - Dark substrate for contrast
Frequently Asked Questions
◆What is a Red Rili shrimp?
A Red Rili shrimp is a patterned color morph of Neocaridina davidi with solid red on the head and tail and a transparent clear band through the middle. It's bred from cherry shrimp and has the same easy, beginner-friendly care.
◆Why do my Red Rili shrimp look different from each other?
The Rili pattern is genetically variable, so offspring naturally range from clean two-tone to mostly red or mostly clear. This is normal. Selective breeding, keeping the best-patterned shrimp, keeps a colony looking consistent over generations.
◆Are Red Rili shrimp hard to keep?
No, Red Rili shrimp are beginner-friendly. They're a Neocaridina color morph with the same hardy care as cherry shrimp: stable water, a mature planted tank, and light feeding. Only the variable pattern requires any extra attention.
◆Can Red Rili shrimp breed with cherry shrimp?
Yes, and that's a problem. Red Rili and cherry shrimp are the same species and will interbreed, with offspring drifting toward muddy or solid coloration and eventually wild-type brown. Keep Red Rili as the only Neocaridina in the tank to preserve the pattern.
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