Neocaridina davidi yellow fire

Recognise the yellow colour form

Yellow Fire Shrimp (Neocaridina davidi) is an Atyidae freshwater shrimp from Taiwan, eastern China, the Korean Peninsula and Vietnam that reaches approximately 4 cm. This selectively bred yellow colour form suits intermediate keepers who can provide a mature, filtered aquarium, measured stable water, established grazing surfaces, cover and a protected filter intake.

The accepted taxonomic entry places the species in the family Atyidae and order Decapoda. Yellow Fire Shrimp and the familiar red Cherry Shrimp therefore share the same species identity while displaying different selectively bred colours.

The Neocaridina davidi natural-history summary describes the wild type as mottled brown and records selectively bred forms in yellow, red, orange, green, blue, violet, white and clear. It places the wild species in lakes, ponds, rivers and streams across its native range. Those facts describe the species in nature rather than the origin of an individual aquarium shrimp.

Choose it for measured, stable care

This is a peaceful grazing shrimp for a mature freshwater aquarium with established surfaces, cover and protected filtration. We rate its care as intermediate: the routine is straightforward, but a new, untested aquarium, abrupt water changes, an exposed filter intake or unsuitable fish can quickly create risk. Success depends on measured water and consistent maintenance.

Expect active picking across plants, wood, rock, substrate and other established surfaces. Its natural diet is omnivorous, while aquarium feeding should combine that grazing opportunity with an appropriate complete shrimp food. Algae or biofilm alone should not be treated as a complete feeding plan.

Choose the dispatch size from the live selector

One purchase supplies one animal. Use the live size selector to choose between 1–1.5 cm and 2–2.5 cm, then set the purchase quantity for the number of shrimp required.

The size you select is the size supplied, not the adult size.

Both sizes are the same yellow colour form and need the same mature aquarium, water planning, group care and compatibility screening. Choose according to the dispatch size you prefer; the larger size is not an adult-size promise or a different care category.

Set the quantity from your group plan

Social freshwater shrimp should be planned as a group. If this is a new group, account for at least five shrimp and remember that each purchase adds one animal. If Yellow Fire Shrimp are joining an existing group, count the animals already present before choosing the additional quantity.

Sex is guaranteed only when the selected option explicitly states male or female. This Neocaridina davidi yellow fire listing has no sex-guaranteed option.

Do not use body shape, colour intensity, an image or dispatch size to predict the sex supplied. Keep breeding expectations separate from the purchase decision because an unsexed order cannot promise a particular sex mix.

The gallery images are representative, based on reference photographs of this species, so colours can look slightly different from the live animal.

For other colour forms of this species, browse the cherry shrimp collection and compare each animal’s identity and care needs before combining groups.

Plan the aquarium around adult size and stable water

Plan around an adult length of approximately 4 cm rather than the selected dispatch size. Wikipedia records mature Neocaridina davidi at approximately 3–4 cm. The adult group, equipment, feeding area, companions and possible juvenile survival all affect the aquarium’s real capacity.

Our complete Cherry Shrimp care guide uses a mature, filtered 20-litre aquarium as a cautious starting policy for a small group. This sits above OATA’s general 10-litre screen for small shrimp and gives more headroom for equipment, grazing space and water stability. Neither figure is a permanent shrimp-per-litre formula, and an aquarium containing fish or other livestock should be planned around the complete adult community.

Use the water figures as a planning screen

OATA’s freshwater shrimp and snail guidance gives 17–27°C, pH 6.5–8.0 and 4–18 dGH for the group. These are broad planning values rather than a species-specific optimum. Choose stable conditions inside them, compare measured water before transfer and avoid abrupt changes.

A suitable plan therefore starts with a mature biological filter, measured zero ammonia and nitrite, a protected intake, established grazing surfaces and cover. Confirm those conditions before selecting livestock, then leave space for the aquarium to remain stable after feeding and future population changes.

Mature the biological filter before adding shrimp

A mature aquarium is defined by biological function, not by a fixed number of weeks. The filter must contain enough beneficial bacteria to process the planned waste load, and water tests must show ammonia and nitrite remaining at 0 mg per litre. A clear-looking new aquarium can still be biologically immature.

The RSPCA’s filtration explanation describes how a working biological filter converts toxic ammonia first to nitrite and then to the safer nitrate. OATA’s freshwater aquarium setup guidance likewise supports cycling, testing and gradual stocking.

Confirm readiness with measurements

1. Run the complete system. Operate the filter, heater when required and other essential equipment in the aquarium’s normal arrangement.
2. Test the water. Confirm zero ammonia and nitrite rather than relying on elapsed time or visual clarity.
3. Check stability. Measure temperature, pH and hardness so the planned conditions remain inside the working ranges.
4. Inspect the intake. Fit a fine guard or suitable sponge wherever a shrimp or juvenile could be drawn into the filter.
5. Stock gradually. Each addition and increase in feeding creates more work for the biological filter.

If ammonia or nitrite is detected, postpone the livestock addition and restore stable biological filtration first. Adding animals to make a tank cycle faster exposes them to toxic waste and does not replace measured preparation.

Plan for the real water volume

The nominal aquarium size is not always the usable water volume. Substrate, wood, rock and equipment occupy space, while fish and other animals add waste and feeding competition. Begin with our cautious 20-litre policy for a small shrimp group, then choose a larger aquarium when the full community or equipment leaves little headroom.

Our freshwater shrimp setup guide gives a practical sequence for preparing and maturing the aquarium before livestock arrives. Use it alongside your test results, not as a calendar countdown.

Keep measured water values stable

Choose a stable point inside 17–27°C, pH 6.5–8.0 and 4–18 dGH, then minimise abrupt movement. Carbonate hardness can be screened within OATA’s 3–15 dKH guidance. UK tap water varies between supplies, and aquarium substrate, rock, top-ups and water treatment can alter the chemistry after it enters the tank.

Use the aquarium water chemistry guide to understand what each test measures. Record actual aquarium results instead of describing the water as simply soft, hard or typical for your area.

Decide on heating from measurements

A heater is useful only when room and aquarium temperatures cannot remain stable inside the chosen shared range. A cool room may need a correctly sized, guarded and thermostatically controlled heater. A warm room needs a plan to prevent overheating. Season and postcode alone do not answer that decision.

For example, an aquarium holding steadily at 24°C is already inside the planning range. Moving it to another arbitrary number adds change without solving a care problem. If the temperature moves towards either end of the range through the day, address the room, heater control or heat source rather than repeatedly adjusting the setting.

Compare values before changing them

The water matcher can organise the comparison between measured aquarium values and the care range. Treat the result as a decision aid while accounting for every other animal in the aquarium.

Make one deliberate adjustment at a time and test again. Changing temperature, pH and hardness together makes it difficult to identify the cause if behaviour or water quality then deteriorates.

Provide cover, grazing surfaces and a protected intake

Build the aquarium around useful surface area rather than open water alone. Live plants, aquarium-safe wood, rock and other textured structures collect biofilm and give shrimp places to graze. Cover also provides sheltered areas during normal periods of hiding and after moulting.

Aquarium gravel or sand gives the shrimp a broad feeding surface and supports routine waste removal with a siphon. Choose aquarium-safe materials and leave enough open access to inspect the animals, clean the substrate and reach the filter. Decoration should support maintenance rather than blocking it.

Protect every filter opening

A filter is essential, but an exposed intake can trap small shrimp and juveniles. Fit a fine guard or suitable sponge to any opening they could enter. Inspect the guard for blockage as part of routine maintenance because trapped debris can restrict flow and reduce filtration performance.

Judge the layout by shrimp access

Watch whether every shrimp can reach sheltered surfaces and feeding areas without being displaced. A layout that looks densely planted from the front may still leave little usable cover after plants are trimmed. Reassess the structure whenever maintenance significantly changes it.

Established surfaces support natural picking behaviour, but an old-looking aquarium is not automatically safe. Maturity still requires working filtration and measured zero ammonia and nitrite. Biofilm also complements rather than replaces a complete shrimp food.

If live plants are not used, provide aquarium-safe artificial plants and suitable ornaments that create shelter. Whatever the style, avoid designing a sealed maze that prevents inspection of the animals or creates inaccessible pockets of accumulated waste.

Feed the group without fouling the water

Neocaridina davidi is omnivorous in nature. In the aquarium, Yellow Fire Shrimp graze biofilm and some soft growth, but grazing alone should not be assumed to meet every nutritional need. Use an appropriate complete sinking shrimp food as the nutritional base and follow the current manufacturer’s portion guidance.

OATA’s group feeding guidance suggests added food two or three times a week. Pellets or algae wafers should remain accessible for at least 30 minutes so the shrimp have time to feed. Use those figures as a starting routine, then adjust from direct observation of this group, the grazing present and the rest of the aquarium community.

Watch access as well as appetite

• Check that every shrimp can reach the food without faster companions taking it first.
• Look for repeated leftovers rather than assuming a fixed portion suits every group.
• Account for changes in group size and juvenile survival.
• Compare water-test trends before and after changes to feeding.
• Keep the feeding surface visible enough to judge what remains.

Do not treat the shrimp as a substitute for aquarium maintenance. Their grazing does not remove accumulated waste or guarantee control of a named algae. A sudden increase in food can also exceed the biological filter’s present capacity, even when the aquarium has previously tested well.

Judge colour separately from feeding adequacy. Lighting, background, inherited colour, stress and image processing can all change how yellow appears. Feed for complete nutrition and stable water rather than automatically adding more food in response to appearance alone.

Maintain the water and filter every week

Carry out a 25% partial water change at least once a week. Treat replacement tap water with a suitable conditioner to remove harmful chlorine or chloramine before it enters the aquarium. Keep the new water reasonably aligned with the aquarium’s temperature and chemistry so maintenance does not create an abrupt change.

Test ammonia and nitrite at least weekly and keep both at 0 mg per litre. OATA advises that nitrate should not exceed 20 mg per litre above the normal tap-water level. Test the tap supply as well as the aquarium when interpreting that comparison.

Clean without stripping the filter

1. Siphon accessible solid waste from the gravel or sand during the partial water change.
2. Check the filter and protected intake for blockage.
3. If media needs cleaning, rinse it lightly in removed aquarium water.
4. Do not run the filter media under the tap.
5. Restart the equipment and confirm that normal flow has returned.

Replacing or aggressively washing all media at once can remove the beneficial bacteria responsible for processing ammonia and nitrite. Preserve that biological function while removing enough debris to keep water moving through the filter.

Use test results as action points

Increase livestock numbers slowly. Beneficial bacteria need to respond whenever animal numbers and feeding rise, and adding too much too quickly can cause new tank syndrome. The aquarium’s previous stability is not permission to skip testing after a meaningful change.

Acclimatise slowly after arrival

Arrange for someone to receive the parcel so live animals are not left unattended. Before arrival, confirm that the aquarium is mature, the filter is running, ammonia and nitrite are zero and the planned water values are stable.

Our delivery and Live Arrival Guarantee policy sets out the current arrival requirements, including the continuous unboxing video and a 20–30 minute float before release.

Follow the arrival sequence

1. Receive the parcel in person so it is not left unattended.
2. Start filming while the parcel is still sealed and the outer box is visible.
3. Open the parcel in one continuous take.
4. Film the animal while it remains inside the sealed bag before anything is disturbed.
5. Float the bag for 20–30 minutes before releasing the shrimp.
6. Transfer the shrimp without pouring the bag water into the aquarium.

Do not make several preventative changes immediately after transfer. New food, altered temperature, changed hardness and medication introduced together make later observations difficult to interpret. Keep the established routine unless measurements or clear signs require a specific response.

Observe the first week consistently

Watch activity, colour, feeding interest, hiding, breathing effort and use of higher-flow or higher-oxygen areas. Some hiding can accompany moulting, but a change affecting several shrimp or persisting alongside poor test results deserves prompt investigation.

Continue the normal weekly testing schedule and test sooner whenever behaviour changes. Check temperature, ammonia, nitrite, filtration and recent maintenance before assuming the cause is disease. Keep additions gradual so the biological filter is not asked to process a sudden increase in waste and food.

Use dedicated wet equipment where practical and keep aquarium contents out of natural waterways. Never release shrimp, water, plants or equipment contents into the wild.

Respond to health changes with measurements first

Learn the group’s normal pattern of grazing, hiding and movement so a meaningful change is easier to recognise. Warning signs include increased inactivity, restlessness, unusual swimming, darker or paler colour, increased hiding, changed breathing effort, reduced feeding, abnormal swelling, lesions, damage to the exoskeleton or loss of appendages.

Check the aquarium before choosing a treatment

1. Measure temperature, ammonia and nitrite immediately.
2. Review nitrate, pH and hardness in context.
3. Check filter flow, intake blockage, heating and aeration.
4. List recent water changes, foods, animals, plants, décor, aerosols and treatments.
5. Compare the affected shrimp with the rest of the group.

An empty exoskeleton can be a normal moult and hiding may occur around moulting, but neither observation alone identifies the shrimp’s condition. Use the animal’s continued behaviour and the aquarium measurements to decide whether further action is needed.

Treat copper and medicines as high-risk decisions

Freshwater shrimp are highly sensitive to copper and will die if exposed even to low levels. Read the exact current label and every invertebrate warning before adding any medicine, algae treatment, fertiliser or other chemical. Use only a product whose instructions are suitable for the animal and the intended aquarium use.

A white mark, reduced movement or a failed moult should not trigger automatic medication. Similar appearances can have different causes, and an unsuitable treatment may add chemical stress while leaving the real water-quality or equipment problem unchanged.

Screen every fish companion for predation risk

Yellow Fire Shrimp are peaceful, but peaceful behaviour does not protect them from fish. Avoid any fish able to fit the shrimp in its mouth and any species known to be predatory. Treat very small juveniles as more vulnerable than adults.

A fish that appears to ignore adult shrimp may still hunt juveniles, compete strongly for food or change behaviour after growing. Compatibility therefore remains conditional even when water values overlap and the aquarium has dense cover.

Assess the complete adult community

• Adult mouth size: compare it with both adult shrimp and newly hatched juveniles.
• Hunting and territorial behaviour: assess the species at adult size, not only the individual’s present behaviour.
• Feeding competition: confirm that shrimp can reach complete food without being displaced.
• Water overlap: choose conditions that suit every animal without pushing the shrimp outside 17–27°C, pH 6.5–8.0 or 4–18 dGH.
• Cover: retain sheltered structure after routine plant trimming and cleaning.
• Separation plan: keep a practical way to remove either party if behaviour changes.

A shrimp-only aquarium removes fish predation from the plan, although filtration, food, equipment, crowding and water quality still require attention. It is the clearest choice when maximum juvenile survival matters.

Other shrimp or snails still need identity, adult-size, food and water screening. Shared classification or similar appearance does not automatically make two animals suitable companions.

Plan the starting group and future population

OATA advises keeping social shrimp in groups of at least five. Use five as the starting floor rather than a maximum or a shrimp-per-litre formula. Our cautious policy begins at a mature, filtered 20-litre aquarium for a small group and moves upwards when fish, other invertebrates or a growing population share the system.

Decide what success means

A female Neocaridina davidi carries eggs externally beneath the abdomen, and young hatch as benthic juveniles rather than passing through the prolonged saline planktonic stage associated with Amano Shrimp. That biology does not promise reproduction, a particular sex mix or a surviving colony.

If juveniles appear, reassess feeding access, intake protection, filtration headroom and the aquarium’s usable space. Do not calculate permanent capacity by multiplying litres by a fixed shrimp number. Population growth, companion load, feeding and maintenance all change the practical limit.

Protect the chosen colour line deliberately

Yellow Fire is one selectively bred colour form within the species. If retaining a yellow line matters, use a single-colour aquarium and avoid assuming mixed colours will produce predictable offspring. Colour goals never change the need for mature filtration, stable measured water and complete food.

Before adding another species, repeat the compatibility screen using its adult mouth size, behaviour, water needs and feeding speed. A suitable group plan leaves room to reverse the decision if predation, competition or water conflict becomes apparent.

Answer common buying and care questions

How big does Neocaridina davidi yellow fire get?

This Yellow Fire Shrimp reaches approximately 4 cm. Plan the aquarium around this adult length rather than the 1–1.5 cm or 2–2.5 cm dispatch size.

What size aquarium does a Yellow Fire Shrimp need?

Prepare a mature, filtered aquarium from 20 litres for a small Neocaridina davidi yellow fire group under Tropical Fish Co’s cautious planning policy, then use more space for fish, other livestock or population growth.

How many Yellow Fire Shrimp should I keep together?

Keep Neocaridina davidi yellow fire as a social group of at least five under OATA’s freshwater-shrimp guidance. Each animal adds to the feeding, grazing and filtration load.

Are Yellow Fire Shrimp suitable for beginners?

Neocaridina davidi yellow fire has an intermediate store care rating. It suits keepers who can provide a mature filter, zero ammonia and nitrite, stable measured water, cover and a protected filter intake.

What do Yellow Fire Shrimp eat?

Feed Neocaridina davidi yellow fire an appropriate complete sinking shrimp food alongside established biofilm and grazing surfaces. OATA suggests added food two or three times a week and at least 30 minutes of feeding access.

What temperature and pH does this shrimp need?

Keep it within 17–27°C and pH 6.5–8.0, with general hardness of 4–18 dGH. These are OATA’s broad freshwater-shrimp group values, so choose stable conditions inside them and avoid abrupt changes.

Is this shrimp aggressive or likely to nip fins?

This shrimp is peaceful and is not described as a fin nipper. Compatibility still depends on whether other animals may swallow it, hunt it or prevent it from reaching food.

Which kinds of animals can it live with?

Screen every companion for adult mouth size, predatory behaviour, feeding competition, shared water needs and usable cover. Avoid fish able to fit shrimp in their mouth and species known to be predatory; use a shrimp-only aquarium when juvenile survival is the priority.

How does it arrive alive in the UK?

Start filming the sealed parcel before opening it, with the outer box visible, and continue while it is opened and the animal remains in the sealed bag. Someone must be present to receive the parcel; float the bag for 20–30 minutes, then release the shrimp without pouring the bag water into the aquarium.

Consult the reference list

• World Register of Marine Species: accepted name, family and order for Neocaridina davidi.
• Wikipedia, Neocaridina davidi: natural distribution, habitats, omnivory, colour forms and recorded adult length.
• Ornamental Aquatic Trade Association, freshwater shrimp and snails: group water values, social care, feeding, aquarium planning, maintenance and compatibility.
• RSPCA aquarium environment guidance: biological filtration and nitrogenous waste processing.
• Ornamental Aquatic Trade Association, freshwater aquarium setup: cycling, testing and gradual stocking.