Meleagris Shell-Dweller (Neolamprologus stappersi)

Recognise a shell-dwelling Lake Tanganyika cichlid

The Meleagris Shell-Dweller is a small cichlid associated with the bottom of Lake Tanganyika. FishBase records it as Lamprologus meleagris, a freshwater, benthopelagic member of the Cichlidae family found near Bwassa in the Democratic Republic of the Congo. It reaches a recorded maximum of 7 cm total length. It suits keepers who can provide hard, alkaline water, a mature filtered aquarium and a functional shell area while monitoring access to shelter and food.

FishBase describes the wild fish as a shell-brooder from areas where shells occur at low density. It mainly feeds on insect larvae and uses empty snail shells as breeding caves. A male may be too large to enter the shell, so fertilisation takes place from its entrance. These details make the shell field a functional part of the aquarium rather than decoration.

The Neolamprologus genus summary places the genus among the cichlids endemic to eastern Africa, with its members occurring in Lake Tanganyika. This fish is presented as Neolamprologus stappersi; FishBase now lists it as Lamprologus meleagris.

Choose the dispatch size without changing the adult plan

The live size selector shows the dispatch choices “2,5-3 cm” and “3 - 4 cm”. One purchase quantity supplies one animal of the selected option. Use the selector to choose the dispatch size that suits the established aquarium and its other occupants rather than treating the smaller choice as a different care type.

The size you select is the size supplied, not the adult size. Both choices therefore need an aquarium planned around the recorded maximum of 7 cm total length. Check that filter intakes, gaps in décor and feeding access are suitable for the selected dispatch size while retaining enough floor area for the adult fish.

Length must not be used to infer sex, pair formation or social status. Sex is guaranteed only when the selected option explicitly states male or female. This Meleagris Shell-Dweller listing has no sex-guaranteed option.

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

Make the size decision in three steps

1. Read the live selector and choose either “2,5-3 cm” or “3 - 4 cm”.
2. Check that the fish cannot enter an exposed filter intake or become trapped in narrow gaps.
3. Keep the full adult shell territory and water plan in place from the first day.

A larger dispatch fish is still one animal and does not create a guaranteed pair. If the aquarium already contains fish, compare physical size and likely access to food before choosing; do not rely on centimetres alone to resolve compatibility.

Check the decisive water and space requirements

This is a specialised hard-water cichlid rather than a general soft-water community fish. OATA’s African lake cichlid guidance gives 23–27°C, pH 8.0–8.6, general hardness of 12–18°dH and carbonate hardness of 10–15°dKH for the group. FishBase records 24–28°C for this fish’s environment, so use the shared 24–27°C interval for routine aquarium planning.

OATA uses an aquarium at least 45 cm long as its example for a pair of the smallest shell dwellers. Treat that as a starting benchmark for the care group, then judge the actual aquarium by adult size, usable bottom area, shell placement and the number and temperament of fish. A narrow base can remain unsuitable even when its water volume sounds generous.

Decide whether the aquarium fits

Choose this fish when you can establish those values, provide an essential filter, maintain strong oxygenation and leave a practical shell-oriented floor area. It suits a keeper willing to measure water, observe territory use and change the stocking plan if one fish loses access to shelter or food.

Build a functional shell field with retreat routes

Start with fine coral sand or a similar substrate that supports the hard-water aquarium described by OATA. Add empty snail shells because FishBase identifies them as the fish’s natural breeding caves. Keep each shell stable, visible enough for observation and reachable without forcing the fish through a narrow trap between equipment and décor.

The wild biology refers to low-density shell areas. Recreate that function by leaving open space between shell positions rather than covering every part of the base. The aim is to create more than one usable point of shelter while preserving clear movement around the bottom. Do not assume that a decorative heap automatically gives separate territories.

Lay out the aquarium before introducing fish

1. Mark the area taken by the filter, heater and other fixed equipment.
2. Place the substrate and shells where the fish can approach them from open water.
3. Leave routes around each shell so a fish can retreat without passing a dominant individual.
4. Check that water movement does not continually bury an entrance or sweep food away.
5. Confirm that the arrangement can be cleaned without dismantling every shelter.

Stable décor can break long sight lines, but it must not consume the shell field or create unstable overhangs. Watch how the fish uses the base before making changes. A brief inspection of several shells fits its biology; persistent exclusion from the entire bottom area calls for a social or layout response.

Before adding another fish, view the aquarium from the front and both ends. Confirm that the fixed equipment does not funnel every route through one shell position and that open sand remains reachable for cleaning. After introduction, compare where each fish rests, feeds and retreats. If those three activities all depend on one contested point, adjust the layout or separate the fish rather than waiting for repeated pursuit to resolve itself.

Hold the water within a stable hard, alkaline range

Maintain 24–27°C, pH 8.0–8.6, general hardness of 12–18°dH and carbonate hardness of 10–15°dKH. Stability matters because African lake cichlids are specialised for particular water conditions. Measure the aquarium rather than judging suitability from whether the water looks clear.

Use the water chemistry guide to understand each test, then compare measured values with the targets using the water matcher. Test the source water as well as the aquarium so each replacement-water batch can be prepared consistently.

Keep ammonia and nitrite at 0 mg/l. Nitrate should not rise by more than 20 mg/l above the normal level in the tap water. Test the incoming water so the aquarium result can be interpreted correctly.

Treat replacement tap water with conditioner before it enters the aquarium to remove chlorine or chloramine. Match its temperature and water chemistry closely enough to avoid an abrupt swing. A repeatable measured routine is safer than changing several values at once and then trying to identify which adjustment caused a problem.

Use a written baseline for comparison: record the aquarium temperature, pH, general hardness, carbonate hardness, ammonia, nitrite and nitrate after the system is stable. At each routine test, compare the new result with that baseline as well as the target range. A value moving steadily towards a limit deserves action before it crosses the limit. Change one controllable part of the routine at a time, then retest, so the result can be linked to the adjustment.

Mature and protect the biological filter

A working biological filter is essential. The RSPCA explains that fish release toxic ammonia; filter bacteria convert it first to nitrite, which is also toxic, and then to safer nitrate. Clear water is therefore not a substitute for a mature, tested filter.

Prepare and mature the aquarium before the fish arrives. Our first tropical tank guide explains the setup sequence. Readiness is demonstrated by stable water tests and working equipment, not simply by how many days the aquarium has contained water.

Protect the filter’s work

• Choose filtration for the intended adult stocking plan, not only the dispatch size.
• Check the intake against the selected “2,5-3 cm” or “3 - 4 cm” fish.
• Keep strong surface movement and vigorous aeration so the fish and filter bacteria receive enough oxygen.
• Inspect the filter for blockages whenever flow changes.
• Add fish gradually so the bacterial population can adjust as waste and feeding increase.
• Keep a tested response ready if aggression requires temporary separation.

OATA recommends an oversized filter for crowded African lake cichlid communities. Do not turn that recommendation into a reason to overstock: the shell field must still give each fish practical access to shelter and food. Direct strong flow across the surface rather than straight into a shell entrance.

When reusable filter media needs cleaning, rinse it lightly in aquarium water removed during a partial water change. Do not wash it under the tap, because chlorine or chloramine may damage the beneficial bacterial population. Avoid cleaning every piece of biological media at the same time.

Check filter performance by outcome rather than sound alone. Confirm that the outlet still moves the surface, the intake is unobstructed and ammonia and nitrite remain at 0 mg/l. If flow falls after maintenance, inspect the media placement and pipework before increasing feeding or adding fish. When stocking rises, test more frequently until the aquarium again holds stable results under its normal feeding routine.

Feed for insect-eating biology without polluting the water

FishBase describes this shell-dweller as a keen feeder that eats mainly insect larvae in nature. Build the aquarium diet around an appropriate animal-protein cichlid food and suitable insect-larva foods. OATA also identifies animal-rich pellets and frozen animal foods as choices for carnivorous African lake cichlids.

Feed twice a day and give only what the fish can finish within a few minutes. That timing is the practical limit: uneaten food breaks down, increases waste and places extra pressure on the biological filter. Remove leftovers rather than leaving them to disappear among the shells.

Make sure the intended fish actually eats

• Offer particles small enough for the selected dispatch size to take cleanly.
• Place food where it reaches the lower shell area instead of remaining only at the surface.
• Spread the portion when more than one fish is present so a dominant individual cannot take everything.
• Watch each fish swallow food before increasing the next portion.
• Reduce the amount if food remains after a few minutes.

A busy feeding response does not justify a larger portion. Use appetite, body condition and the amount left behind to set the next meal. If one fish rushes forward while another stays behind equipment or a shell, investigate territorial exclusion before adding more food to the water.

For the first several feeds after introduction, use the same small measured portion and note where it lands. Watch whether the fish leaves shelter, takes food and returns without being intercepted. If food consistently misses the shell area, alter the placement rather than increasing the total. When more than one fish is present, judge success by the slowest feeder; a clear feeding response from the dominant individual does not show that every animal has eaten.

Acclimatise with the mature aquarium ready

Complete the shell layout, filtration, heating and water tests before delivery. Arrange for someone to receive the parcel because live fish must not be left unattended. The current delivery and Live Arrival Guarantee policy gives the receiving steps and any claim requirements that apply to the order.

Follow the arrival sequence

1. Start filming before the parcel is opened, showing the sealed parcel and outer box.
2. Open the parcel in one continuous take and show the fish still inside the sealed bag before anything is disturbed.
3. Float the bag for 20–30 minutes before releasing the fish.
4. Never pour the bag water into the aquarium.

Complete all aquarium preparations before the parcel arrives, then follow the 20–30 minute bag-float instruction and release the fish without adding the bag water to the aquarium.

Keep feeding modest after introduction while the biological filter responds to the added waste. Check ammonia and nitrite after a meaningful stocking increase, especially if several fish are introduced over a short period. Additions should be gradual because the established bacterial population must grow as feeding and waste increase.

During the first day, keep observation purposeful and brief. Confirm that the fish remains balanced, breathes steadily and can reach shelter without continuous pursuit. Recheck the filter outlet after release because a moved fitting or disturbed substrate can alter flow around the shell field. Record the introduction time and the first feeding response so later changes can be compared with a clear starting point.

Maintain the aquarium on a measured weekly routine

Change 25% of the water at least once every week. Treat the replacement water with tap-water conditioner before adding it, and keep its temperature and chemistry close to the aquarium values. Use the change to remove solid waste from accessible substrate without dismantling occupied shell positions.

Test ammonia, nitrite and nitrate at least weekly. Record temperature, pH and hardness often enough to catch a drift before it becomes a sudden correction. Test immediately when appetite, breathing, colour or swimming behaviour changes rather than waiting for the regular maintenance day.

Use one consistent maintenance sequence

1. Count the fish and observe breathing, fins, colour and feeding response.
2. Test the water before disturbing the aquarium.
3. Remove 25% while siphoning accessible waste.
4. Inspect shell approaches without lifting an occupied shell.
5. Check the filter intake, outlet and surface movement.
6. Rinse reusable media lightly in removed aquarium water only when cleaning is needed.
7. Add conditioned, closely matched replacement water.
8. Test again when the earlier result or fish behaviour requires it.

Do not use the water change as a full redesign. Shell-brooding behaviour depends on access to familiar shelter, while territorial boundaries can change when décor is moved. Rearrangement has a place when managing aggression, but routine cleaning should preserve a layout that is working.

Compare the result after maintenance with the reading taken before it. The comparison shows whether the change restored the intended conditions and whether the interval is controlling waste. If nitrate repeatedly rises quickly, review the amount fed, the pace of additions and accessible waste before relying on a larger one-off clean. Consistent smaller decisions protect the filter and preserve the shell arrangement better than waiting for several problems to appear together.

Respond early to behaviour and health changes

Learn the individual fish’s normal behaviour so changes stand out. OATA highlights surface hanging, prolonged bottom sitting, erratic swimming, a darker or paler colour, increased hiding, altered aggression, faster or slower gill movement, white spots, fluffy growths, fin or scale loss, body-condition change and reduced feeding as warning signs.

Begin with measurable causes. Test ammonia, nitrite, nitrate, temperature and pH, then check filter flow and aeration. Inspect whether the fish can reach a shell, food and open water without constant pursuit. Water quality and territorial pressure can occur together, so checking only one may miss the immediate problem.

Match the observation to an action

Do not add a random treatment solely from one outward sign. Similar changes can accompany poor water, injury, social stress or illness, and an unsuitable treatment can add pressure to the fish or biological filter. Preserve stable heat and oxygen while the cause is assessed.

If a change persists after the immediate water and aggression checks, contact us with the test results, recent maintenance, feeding response and a clear description of what changed. Those details allow the next step to focus on the fish’s actual condition rather than its appearance alone.

Record when the change began and whether it followed feeding, maintenance, a new addition or a shift in territory use. Compare more than one observation: appetite together with breathing, position and fin condition gives a clearer picture than colour alone. Keep the affected fish under close observation after the first response and repeat the relevant water tests. Improvement should be visible in behaviour as well as in the numbers.

Plan the social group deliberately

OATA advises that very few African lake cichlids do well when kept singly, while also making clear that the right number depends on the species. For the Meleagris Shell-Dweller, plan social stocking around shell access, adult size, temperament and usable bottom area instead of assuming that a fixed pair, harem or colony will form.

Each purchase supplies one animal, so choose the order quantity separately from the dispatch-size choice. Adding several fish increases both social uncertainty and the load on the filter. Make additions slowly and keep a mature separation aquarium or secure divider ready before territorial behaviour develops.

Assess the group by outcomes

Sex cannot be selected from body length, and the two dispatch sizes do not promise a social role. Do not build the whole aquarium around an assumed male or female. Build several retreat routes, observe where each fish settles and be prepared to revise the group rather than adding more animals to distract an aggressor.

For a stocking and compatibility assessment, contact us with the aquarium’s length, usable base, water values, established inhabitants and intended quantity. The assessment must consider the adult fish and its territory, not just whether every candidate tolerates alkaline water.

Review the group at feeding time and again when food is absent. A fish that eats only during a brief distraction may still lack secure access to the aquarium. Check whether every animal can occupy shelter, cross the base and rest without being pursued continuously. If the same individual loses access on repeated checks, use the prepared separation plan before adding another fish or changing the order of introduction.

Screen every potential companion before mixing cichlids

As a general rule, keep African lake cichlids with species from the same location. OATA does not generally recommend mixing Lake Malawi and Lake Tanganyika cichlids because their temperament and behaviour differ. For this fish, Lake Tanganyika origin is only the first screen; matching origin does not make two species automatic companions.

Apply five checks to every candidate

1. Water: both animals must fit 24–27°C, pH 8.0–8.6 and hard water without compromise.
2. Adult size: compare mature dimensions rather than dispatch length.
3. Temperament: consider how each fish defends space and responds to newcomers.
4. Territory: reject a plan in which both species depend on the same shell or bottom area.
5. Capacity: leave enough biological filtration, oxygen and retreat space after every fish is added.

When additions are suitable after assessment, introduce more peaceful fish before more aggressive fish. Rearranging décor may reduce established territorial advantage, but only if every inhabitant still receives a usable refuge. Observe continuously during the settling period and separate any fish that loses access to shelter or food.

Browse the African cichlid collection for comparison, then apply the location and territory screen to each animal. A shared collection or similar adult length is not a compatibility decision.

Work through all five checks before purchase rather than stopping after the first match. For example, a candidate may share the 24–27°C range yet still depend on the same bottom area, or it may use another zone but require an adult stocking plan that leaves too little filtration capacity. Treat any failed check as a reason to revise the combination. After introduction, repeat the screen using observed access to food, shelter and open water.

Answer common buying and care questions

How big does the Meleagris Shell-Dweller get?

The Meleagris Shell-Dweller reaches a recorded maximum of 7 cm total length, so plan its aquarium around that adult size rather than its dispatch length.

What size aquarium does the Meleagris Shell-Dweller need?

OATA’s group guidance uses an aquarium at least 45 cm long as its example for a pair of the smallest shell dwellers; judge the final aquarium by the Meleagris Shell-Dweller’s 7 cm adult size, usable bottom area, shells, number and temperament.

How many Meleagris Shell-Dwellers should I keep together?

OATA advises that very few African lake cichlids do well singly, but the right number depends on the species; assess shell access, temperament and floor area, and keep separation ready.

Is the Meleagris Shell-Dweller suitable for beginners?

OATA describes African lake cichlids as usually easy to keep, but the Meleagris Shell-Dweller needs a mature filtered aquarium, shells, hard alkaline water at 24–27°C and regular testing.

What does the Meleagris Shell-Dweller eat?

FishBase records mainly insect larvae in its wild diet; use an appropriate animal-protein cichlid food and suitable insect-larva foods twice daily, giving only what it can eat within a few minutes.

What temperature and pH does it need?

Keep it at the FishBase/OATA temperature overlap of 24–27°C; OATA’s African lake cichlid guidance gives pH 8.0–8.6 and general hardness of 12–18°dH.

Is this fish aggressive or likely to nip fins?

African lake cichlids vary in temperament, so watch for repeated chasing, torn fins, exclusion from shells or loss of feeding access and separate fish when pursuit does not stop at a boundary.

Which animals can it live with?

Screen Lake Tanganyika candidates individually by adult size, temperament, water needs, aquarium dimensions and territory; avoid mixing this fish with Lake Malawi cichlids.

How does it arrive alive in the UK?

Film every delivery continuously from the sealed parcel as you open it, keeping the fish inside the sealed bag visible; have someone present to receive it, float the bag for 20–30 minutes and never pour the bag water into the aquarium.

Consult the scientific and welfare references

• FishBase: Lamprologus meleagris — identity, family, distribution, recorded temperature, adult length and wild biology.
• Wikipedia: Neolamprologus — genus-level natural history and Lake Tanganyika context.
• OATA: African lake cichlids — group water, aquarium, feeding, maintenance, introduction and compatibility guidance.
• RSPCA aquarium welfare guidance — biological filtration and the aquarium nitrogen cycle.