Cherry shrimp colors and grades, explained
Shop listings for cherry shrimp are full of names: Sakura, Fire Red, Painted, Bloody Mary, Blue Dream, Rili. Some of those are grades, which describe how much color a shrimp has. Others are color lines, which describe which color it is. All of them are the same species, Neocaridina davidi, with the same care needs. This guide explains what the names mean, how to judge a shrimp's grade yourself, why colors fade when lines are mixed, and how keepers hold a color steady over generations.
What a grade means
Wild Neocaridina are mostly brown, greenish or clear. Every bright variety in the hobby was selectively bred from that wild form, and a grade is shorthand for how far a shrimp has come. Breeders' grading charts look at the same few things:
- Coverage: how much of the shell is colored, and whether clear patches remain on the head, tail, underside and legs.
- Opacity and depth: whether the color is see-through and patchy or solid enough to hide the organs and the saddle.
- Consistency: how uniform a whole group is, males included. A batch where every shrimp meets the bar takes much more culling to produce, which is the main reason higher grades cost more.
Grading is not standardized. One seller's high Sakura is another's low Fire Red, and new names appear as breeders develop lines. Judge the shrimp in front of you, not the label.
The red cherry shrimp grades
| Grade | What it looks like | Notes |
|---|---|---|
| Cherry | Mostly clear or pale body with scattered red patches or speckles; legs largely clear | The base grade and the cheapest. Males are often nearly clear. |
| Sakura | Red over most of the body, but clear gaps remain, especially on the legs and underside | A wide band; some sellers split it into low and high Sakura. |
| Fire Red | Near-solid red at a glance; legs mostly red with little blotchiness | The saddle and eggs become hard to see under normal light. |
| Painted Fire Red | Opaque, deep red over the whole body, legs and underside included, with no clear windows | The top of the standard ladder; females can look almost maroon. |
| Bloody Mary | Very deep, wine-dark red that looks glassy rather than painted; males are often nearly as red as females | Many breeders describe it as a separate line with its color in the body tissue rather than the shell, not just the next rung up. |
Two shrimp from the same grade can still look different, and the same shrimp can look different from week to week. Treat the ladder as a rough guide to what you are buying.
Other color lines
The same selective breeding has produced many other colors. Names vary by seller and region, but the main groups are:
| Color group | Common names |
|---|---|
| Blue | Blue Dream, Blue Velvet, Blue Jelly (a translucent, pale blue) |
| Yellow | Yellow, Golden Back Yellow, Neon Yellow |
| Orange | Orange Sakura, Orange Sunkist |
| Green | Green Jade |
| Black and brown | Black Rose, Chocolate |
| White | Snowball (white, with eggs that look white) |
| Patterned | Rili lines (Red Rili, Blue Rili, Carbon Rili and others): colored head and tail with a clear section in between |
Each line has its own grades, usually judged the same way: more coverage, more solid color and more uniform groups rank higher. For patterned lines such as Rili, a clean, even pattern matters as much as the color.
How to judge a shrimp's color
Color in Neocaridina is not fixed from day to day. Before deciding a shrimp is low grade, or that your colony is fading, allow for these common reasons for paler color:
- Sex: females usually color up more than males, especially in red lines. A group that looks pale may simply be mostly males.
- Age: juveniles are often paler and develop their full color as they grow.
- Stress and new arrivals: shrimp often look washed out after shipping or a big change in water, and color back up over the following weeks once settled. Our drip acclimation guide helps here.
- Background: shrimp tend to look deeper in color over dark substrate and backgrounds, and paler over white sand or a bare bottom.
- Molting: a freshly molted shrimp can look pale for a short time.
- Lighting: shop lights, phone photos and filters change how red reads. Compare shrimp side by side under the same light.
If pale color comes with lethargy or deaths, that is a water problem, not a grade question; see cherry shrimp losing color and why are my shrimp dying.
Why mixed colors turn brown
All these varieties are the same species, so red, blue, yellow and the rest interbreed freely in one tank. The bright colors are the result of selective breeding, and when lines are mixed, the babies often come out brown, clear or blotchy, a look keepers call wild-type. Over a few generations a mixed "rainbow" tank usually ends up mostly dull. The shrimp are just as healthy; they just lose the colors you paid for.
If you want the colors to last, keep one color line per tank, and buy all your starting shrimp of a line from the same source if you can. If you enjoy a mixed tank and do not mind the colony changing over time, that is a perfectly good choice too. Never release unwanted shrimp, of any color, into local waterways.
Keeping a color line strong
Even a single-color colony tends to slowly lose quality over generations if every shrimp breeds, because duller offspring breed as well as bright ones. Breeders hold or improve a line by culling, which simply means moving the shrimp they do not want breeding to another tank or rehoming them:
- Remove the palest adults every few months, both females and males. Males carry the genes too, so keep the most colorful ones.
- Watch for off-colors: brown, clear or differently colored babies are the first to cull from a color line.
- Be patient: selection works over generations. A Cherry-grade colony can be nudged toward Sakura over time by consistently keeping only the best-colored shrimp, and it takes months, not weeks.
- Use a second tank: a small tank for culls keeps them out of the breeding colony; they still make good algae and biofilm grazers.
Our cherry shrimp breeding guide covers the rest of the breeding setup, and if your colony is not producing at all, see cherry shrimp not breeding.
Buying tips
- Grade does not change care. Every grade and color needs the same steady, cycled tank described in our cherry shrimp care guide. A Painted Fire Red is not harder to keep than a Cherry; it is just harder to breed true.
- Ask about the whole group. Photos often show the best females. Ask what the males look like, or whether you are buying a mixed-sex group.
- Expect some variation. Even good lines throw a few lower-grade babies; that is normal.
- Give new shrimp time. Wait a few weeks after arrival before judging their color, since stress and a new background can make them look paler at first.
- Start with enough shrimp. About 10 is a common starting group; see how many cherry shrimp per gallon.
Our Feeding & Molting Tracker printable is a simple way to log saddles, berried females and culls, so you can see how the colony's color changes over time.
Frequently asked questions
What are the grades of cherry shrimp?
The common red ladder, from lowest to highest, is Cherry, Sakura, Fire Red and Painted Fire Red. Bloody Mary is a deep red that many breeders treat as a separate line. Grades describe how much of the body is colored and how solid that color is.
What is the difference between Sakura and Fire Red shrimp?
Sakura shrimp are red over most of the body but still have clear patches, especially on the legs and underside. Fire Red shrimp look near-solid red, with mostly red legs and little blotchiness.
Are higher-grade cherry shrimp harder to keep?
No. All grades and colors are the same species with the same care needs. Higher grades cost more because they take more selective breeding and culling to produce, not because they are less hardy.
Can you mix different colors of cherry shrimp?
You can, but they interbreed. Over a few generations a mixed-color colony usually drifts toward brown, clear or blotchy wild-type shrimp. Keep one color line per tank if you want the colors to last.
Why are my male cherry shrimp less red?
Males of most red lines are naturally paler and smaller than females, often with clear patches. Juveniles and newly arrived or stressed shrimp can also look paler until they settle.
Is Bloody Mary a grade of cherry shrimp?
Sources disagree. Some charts put it at the top of the red ladder, while many breeders describe Bloody Mary as a separate deep-red line whose color sits in the body tissue rather than the shell.