Among the most beloved freshwater invertebrates in aquariums are the cherry shrimp (Neocaridina davidi). Because their color is striking, they are gentle and good at eating algae. They are popular in tanks with other fish or those just for shrimp. Yet, many new shrimp owners find themselves wondering: are cherry shrimp suitable to live together, how many can be kept in a tank, and what’s the best cherry shrimp tank size?
Content Table
We’ll talk about all the things you require to look after cherry shrimp well. Also discuss the best group sizes, examine the shrimp’s reproduction process, discuss fish tank capacity, and offer tips for a 6-gallon aquarium. This guide is suitable for beginners and also anyone looking for tips to improve shrimp keeping.
Keeping cherry shrimp
Should Cherry Shrimp Be Kept Together?
Cherry shrimp should always be kept together in a tank, because it is healthy for them and suitable for their behavior. Cherry shrimp enjoy being with other shrimp. In both natural habitats and aquariums, they tend to form groups where they all feed, interact, and can even reproduce. Grouping them makes them feel at ease and helps them behave more naturally.
Cherry shrimp may become stressed if they are placed alone or with very few of their kind. They avoid being seen and eat less food while also not showing as many bright colors. If they are kept with companions, they tend to move around, graze on biofilm, and appear with brighter colors.
Why should they be kept together?
- They are less shy and more active in a group.
- Group living helps with molting success and survival.
- A balanced male-to-female ratio boosts breeding.
- Shrimp colonies develop a helpful ecosystem of microorganisms.
So, if you’re starting a shrimp tank, aim for at least 6–10 cherry shrimp to form a healthy, thriving group.
How Many Cherry Shrimp Per Gallon?
As a general guideline, have 5–10 cherry shrimp per gallon of water in your tank. It will be based on your tank’s design, filtration, and maintenance routine.
Here’s a breakdown:
- Light bio-load tanks (well-planted, with no other fish): up to 10 shrimp per gallon.
- Moderate bio-load tanks (few tank mates, minimal plants): 5–7 shrimp per gallon.
- High bioload tanks (with fish or less filtration): keep it conservative at 3–5 shrimp per gallon.
How many cherry shrimp
Cherry shrimp are generally small (between 1 and 1.5 inches long), and they don’t create as much waste as fish. Even so, water quality should not be ignored because shrimp are sensitive to ammonia and nitrite. A well-planted tank that is also biologically stable can allow you to have more shrimp.
Key Tip: Always tend to shrimp populations with future breeding under consideration. Because they multiply more readily than other types of fish.
How Many Cherry Shrimp in a 6-Gallon Tank?
If your 6-gallon tank is cycled, planted, and has quality filtration, you can start with 30 to 40 cherry shrimp. You can use a 6-gallon tank to give your colony enough space without needing too much room.
Here’s how to set up a 6-gallon tank for cherry shrimp:
- Filtration: Using a sponge filter or a filter made for shrimp can keep you from capturing any small shrimp.
- Plants: Add plants to your aquarium, for instance, moss (like Java moss) and Anubias, as these provide hiding places and form biofilm.
- Substrate: Put in either hygger soil or inert gravel, since shrimp prefer them for their plants and bacteria.
- Tank mates: Since it’s a small tank, avoid putting fish in the same space. When needed, include only quiet fish like ember tetras or a small snail in the tank.
Once the colony reaches 40 cherry shrimp, the favorable conditions will bring it up to more than 100 shrimp in no time. Proper care, frequent water replacements, and regular checking of the aquarium will help the colony thrive as it becomes larger.
Cherry shrimp tank size
Do Cherry Shrimp Multiply Fast?
Cherry shrimp have a high breeding rate, particularly if they are given the best conditions. On average, a healthy female shrimp can release 20–30 eggs every few weeks. If everything goes well, those eggs will develop into baby shrimplets that quickly grow.
Breeding facts:
- Shrimp reach sexual maturity in about 4–6 weeks.
- Females carry eggs under their belly for 2–3 weeks.
- Baby shrimp are born fully formed (no larval stage).
- With good water quality and food availability, your shrimp population can double in 1–2 months.
What boosts their breeding?
- Stable water parameters (pH 6.5–7.5, 72–78°F).
- High-quality diet(algae wafers, blanched veggies, shrimp-specific food).
- Planted tanks with hiding spots for babies.
- Low or no predation—avoid keeping them with fish that might eat the babies.
Because of their fast reproduction, always plan your tank size and population limits with growth in mind. Overcrowding can lead to poor water quality, stunted growth, and stress.
Cherry Shrimp Tank Size
Keeping a small aquarium is suitable for cherry shrimp, but to maintain a healthy colony, they require sufficient space. This chart tells you how big a tank you need for different numbers of cherry shrimp.
| Tank Size | Recommended Starting Number | Ideal Colony Capacity |
| 5 gallons | 20–25 shrimp | Up to 50 shrimp |
| 6 gallons | 30–40 shrimp | Up to 60–80 shrimp |
| 10 gallons | 40–50 shrimp | Up to 100+ shrimp |
| 20 gallons | 80–100 shrimp | Up to 150+ shrimp |
| 30+ gallons | 100+ shrimp | Large Colonies Possible |
Concluding Thoughts
Cherry shrimp are easy to keep, enjoyable, and give lots of rewards—but, as all pets do, they need attention and preparation. This species should not be kept alone in a tank, as cherry shrimp require the company of others. Great to begin with 5–10 liters per gallon, and 6 gallons can fit up to 30–40 shrimp, plus space for many more to come.
As they breed rapidly, the population in your tank can increase quickly, so ensure you have sufficient filtration, food, and hiding spots. Whether you’re new to shrimps or interested in expanding, the right surroundings help your cherry shrimp do well and brighten your tank.
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