Cherry shrimp care: a complete beginner guide
Cherry shrimp (Neocaridina davidi) are the most popular freshwater shrimp in the hobby, and for good reason: they are small, colorful, busy and, once a tank is settled, among the easiest invertebrates to keep and breed. Most problems new keepers run into come from a handful of avoidable mistakes, usually adding shrimp to a tank that isn't ready or changing the water too suddenly. This guide pulls the basics into one page and links to our detailed guides for each step. We haven't run controlled trials; the figures are commonly cited ranges from hobby references and recurring owner reports, not hard rules or veterinary advice.
Cherry shrimp at a glance
| Topic | Commonly cited guideline | More detail |
|---|---|---|
| Tank size | 5–10 gallons or more is easier to keep stable; smaller tanks work with extra care | Stocking guide |
| Starting group | About 10 shrimp is a popular start | How many per gallon |
| Temperature | Low to mid 70s °F (about 22–25 °C); tolerant of room temperature, but steady is best | Nano heaters |
| GH / KH | About 6–8 dGH; about 2–6 dKH (some references go to 8) | Test kits |
| pH / TDS | pH roughly 6.5–8; TDS roughly 150–250 ppm | Tap water |
| Ammonia / nitrite | Zero; nitrate kept low | Cycling |
| Feeding | Small amounts every day or two; remove leftovers | Shrimp food |
| Water changes | About 10–20% every 1–2 weeks, matched and dechlorinated | Water changes |
| Lifespan | Commonly about 1–2 years | Lifespan |
Ranges vary between sources, and many colonies thrive in steady water slightly outside them. What owner reports link most often to losses is sudden change, not a reading that is a little off.
1. Set up the tank
- Size: cherry shrimp can live in a few gallons, but more water dilutes waste and buffers swings in temperature and chemistry, so 5 to 10 gallons or more is more forgiving for a first tank.
- Filter: a sponge filter, or a covered intake on any other filter, keeps baby shrimp from being pulled in. See shrimp-safe filters.
- Substrate: plain inert gravel or sand is the simplest choice for cherry shrimp. Active soils that lower pH and hardness are mainly used for Caridina. See best substrate for shrimp.
- Plants and moss: they give shrimp cover and surfaces to graze. Easy options such as moss, floating plants and hardy epiphytes are in best plants for a shrimp tank. Check that any fertilizer is shrimp-safe; see shrimp-safe fertilizer.
- Lid: a cover reduces evaporation and keeps the occasional wandering shrimp in the tank.
2. Cycle the tank before adding shrimp
Shrimp are very sensitive to ammonia and nitrite, so the tank needs a full nitrogen cycle first. A fishless cycle from scratch commonly takes around four to eight weeks. Many shrimp keepers also wait a few extra weeks after ammonia and nitrite read zero, so algae and biofilm can build up for the shrimp to graze. The step-by-step is in how to cycle a shrimp tank.
3. Get the water right, then keep it steady
Cherry shrimp are usually fine in dechlorinated tap water if the hardness is in a reasonable range. Test your tap water's GH, KH and TDS once before you buy shrimp (what they mean: GH and KH explained), then test the tank weekly while it settles. Always use a water conditioner on tap water, since chlorine and chloramine are harmful to shrimp. Copper is toxic to invertebrates, so avoid copper-based medications and treatments in a shrimp tank. Our guides to tap water and GH, KH and TDS test kits explain each number.
Temperature: cherry shrimp handle a range of room temperatures, and many keepers run them unheated. Warmer water speeds up growth, breeding and aging; cool rooms slow breeding a lot. A small adjustable heater is mainly about stability when your room swings. See heaters for nano shrimp tanks.
4. Add shrimp slowly
Shrimp often come from water that differs from yours. Drip acclimation, letting tank water drip slowly into their container over an hour or more, is the method most shrimp keepers recommend. Losses in the first few days after arrival are most often linked to acclimation shock or shipping stress. See how to drip acclimate shrimp.
5. Feed lightly
In a settled, planted tank, shrimp spend much of the day grazing biofilm and algae; prepared food tops that up. The most common advice is a small amount of a shrimp staple every day or two, only what the colony clears in a couple of hours, with leftovers removed within a day. Blanched vegetables such as zucchini or spinach make occasional treats. Overfeeding is a frequently cited cause of cloudy water and pest outbreaks such as planaria and hydra. Food options compared in best shrimp food.
6. Do small, matched water changes
In an established, lightly stocked tank, about 10–20% every one to two weeks is a common routine. Treat the new water, match its temperature and hardness to the tank, and add it slowly. Top off evaporation with RO or distilled water, because evaporation leaves minerals behind. Large, unmatched water changes are one of the causes owners link most often to sudden deaths. See shrimp tank water changes.
7. Understand molting
Shrimp grow by shedding their shell. Finding an empty, see-through shell is normal; many keepers leave it in the tank for a day or two, since shrimp pick at it to recover minerals. Young shrimp molt more often than adults. Trouble molting is most often linked to minerals out of balance and sudden water changes. See how often shrimp molt and shrimp dying after molting.
8. Breeding happens on its own
In a stable tank with no fish, cherry shrimp usually breed without help. Females are typically larger and more colorful, and a yellowish "saddle" behind the head is developing eggs. A female carrying eggs under her tail is called berried; hobby sources commonly put the berried stage at about three to four weeks. Babies hatch as tiny copies of the adults and graze biofilm. If yours aren't breeding, see cherry shrimp not breeding; the full process is in how to breed cherry shrimp. Losing color? See cherry shrimp losing color.
9. Choose tank mates carefully
Snails and other peaceful shrimp are the safest company. Very small, peaceful fish with tiny mouths can work, but most will eat shrimplets, so a community tank grows its colony much more slowly. Avoid large or predatory fish. Our cherry shrimp tank mates guide lists safer and riskier choices.
Common beginner mistakes
- Adding shrimp to a new, uncycled tank. The most common cause of early losses.
- Big, unmatched water changes. Change less, more often, with conditioned water at the same temperature and hardness.
- Overfeeding. Feed less than you think and remove leftovers.
- Copper and chemicals. Copper-based medications, some pest treatments and sprays used near the tank can kill shrimp.
- Chasing numbers. Small daily adjustments to pH or hardness cause more harm than steady water slightly outside a range.
If shrimp are already dying, start with why are my shrimp dying.
Keep a simple routine
Most cherry shrimp care is a short weekly habit: feed lightly, glance at every shrimp, test, and do a small water change. The Maintenance Schedule printable lays out daily, weekly and monthly tasks, the Water Parameter Log keeps test results in one place, and the Cycling Checklist walks a new tank through to shrimp-ready.
Frequently asked questions
Are cherry shrimp good for beginners?
Yes. They are usually described as the easiest dwarf shrimp to keep, as long as the tank is fully cycled first and water changes are small and matched.
What water parameters do cherry shrimp need?
Commonly cited ranges are about 6–8 dGH, 2–6 dKH, pH roughly 6.5–8 and TDS roughly 150–250 ppm, with zero ammonia and nitrite. Steady water matters more than exact numbers.
Do cherry shrimp need a heater?
Not always. Many keepers run them at room temperature. A heater helps keep the temperature steady in rooms that swing or get cool, which also helps breeding.
How often should I feed cherry shrimp?
A small amount every day or two is the most common advice, only what they clear in a couple of hours. Shrimp in a mature, planted tank also graze biofilm and algae.
How many cherry shrimp should I start with?
About 10 is a popular starting group, because it gives good odds of getting both males and females.
Can cherry shrimp live with fish?
Some very small, peaceful fish can work, but most fish eat baby shrimp. Snails and other peaceful shrimp are the safest tank mates.