Cichlids · Neolamprologus multifasciatus

Shell dweller cichlid care guide

Also called: Multies, Multis, Multi cichlid, Many-banded shell dweller, Lamprologus multifasciatus

The shell dweller cichlid, or multie, is one of the smallest cichlids at about 4 cm (1.5 in). A colony living in empty snail shells on sand is fun to watch. It needs hard, alkaline water and more shells than fish.

Shell dweller cichlids need a tank of at least 10 gallons (38 L), a group of 2 or more, and water at 24–27°C (75–81°F) with a pH of 7.5–9. They grow to about 4 cm (1.6 in) and are semi-aggressive.

Plan a tank with shell dweller cichlidsSee all tank mates

Shell dweller cichlid quick facts

Scientific nameNeolamprologus multifasciatus
FamilyCichlidae
OriginLake Tanganyika, East Africa (found nowhere else)
Adult size4 cm (1.6 in)
Minimum tank10 gallons (38 L), at least 45 cm (18 in) long
Temperature24–27°C (75–81°F)
pH7.5–9
Hardness (GH)10–25 dGH
Group size2 or more, with more females than males (colony)
TemperamentSemi-aggressive; males fight each other
Swims atBottom
DietCarnivore
Care levelEasy
Lifespan5–8 years
Safe with shrimp?Mostly (eats baby shrimp)
Safe with plants?Yes
  • Needs sand or smooth, fine gravel to protect its barbels and belly.

Tank setup

A pair or trio fits in a 10-gallon (38 L) tank, but a 20-gallon long (76 L) gives a colony room to spread out. Use at least 5 cm (2 in) of fine sand and scatter two or three empty snail shells per fish across it. Rocks and plants are optional, since the fish live mostly on the sand and in the shells.

How many shell dweller cichlids in a tank?

The smallest common tank that suits shell dweller cichlids is a 10 gallon. Here is roughly how many fit in each size when they are the only fish, based on adult size and waste output. Leave room if you want tank mates.

TankShell dweller cichlids (alone)
3 gallonToo small
5 gallonToo small
10 gallon2–13
15 gallon2–20
20 gallon2–27
20 gallon long2–27
29 gallon2–39
40 gallon2–54
55 gallon2–74
75 gallon2–102
125 gallon2–170

Numbers are bioload limits only. Males fight, so keep a group of 2 or more with more females than males.

What you need for shell dweller cichlids

Sized for a 10 gallon tank, the smallest common size that suits a group of 2 shell dweller cichlids. For a different tank or a mix of fish, use the stocking calculator for a list sized to your plan.

Tank and equipment

Food and extras for shell dweller cichlids

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Water parameters

Keep them at 24–27 °C (75–81 °F), pH 7.5–9.0 and hard water of 10–25 dGH. If your tap water is soft, raise the hardness with crushed coral, aragonite sand or a mineral buffer. Steady conditions matter more than hitting an exact number.

Best tank mates for shell dweller cichlids

These popular species share shell dweller cichlids' water needs and temperament. See the full list of 12 good matches.

Avoid keeping shell dweller cichlids with

  • Angelfish: Shell dweller cichlid is a Lake Tanganyika cichlid. It needs a Lake Tanganyika tank: hard, alkaline water (pH 7.5–9), plenty of rockwork and other cichlids from the same lake. Angelfish don't belong in that setup.
  • Betta fish: Shell dweller cichlid is a Lake Tanganyika cichlid. It needs a Lake Tanganyika tank: hard, alkaline water (pH 7.5–9), plenty of rockwork and other cichlids from the same lake. Bettas don't belong in that setup.
  • Bronze corydoras: Shell dweller cichlid is a Lake Tanganyika cichlid. It needs a Lake Tanganyika tank: hard, alkaline water (pH 7.5–9), plenty of rockwork and other cichlids from the same lake. Bronze corydoras don't belong in that setup.
  • Common goldfish: They need different temperatures: Shell dweller cichlid 24–27°C (75–81°F), common goldfish 15–22°C (59–72°F).
  • Dwarf gourami: Shell dweller cichlid is a Lake Tanganyika cichlid. It needs a Lake Tanganyika tank: hard, alkaline water (pH 7.5–9), plenty of rockwork and other cichlids from the same lake. Dwarf gouramis don't belong in that setup.
  • Fancy goldfish: They need different temperatures: Shell dweller cichlid 24–27°C (75–81°F), fancy goldfish 18–23°C (64–73°F).

Feeding

In the lake they snap up tiny animals drifting past their shells. Offer crushed flakes, small pellets, baby brine shrimp, daphnia and frozen cyclops or bloodworm. Small meals once or twice a day keep them in good shape.

Behavior

Each fish guards its shells and a small patch of sand around them, and will even nip at a hand that reaches in. Males squabble over shells, so give plenty and keep more females than males. They dig constantly and bury or move shells, which is normal.

Breeding

Multies breed readily in a settled colony. A female lays her eggs inside a shell and guards them, and the fry hide in and around the shells. Broods are small but frequent, so a colony grows by itself as long as there are spare shells. Feed fry baby brine shrimp or microworms.

Tips from experienced keepers

  • Give each fish at least two or three shells. Cleaned escargot shells sold for cooking work well.
  • Use fine sand, not gravel. They dig all day and move shells by burying them.
  • Start with about six young fish and let them sort themselves into a colony.
  • Pick tank mates that stay higher in the water, and skip other bottom dwellers.
  • Keep spare shells on hand, because a growing colony needs more over time.

Frequently asked questions

How many shells do multies need?

Give each fish at least two shells, and three is better. Extra shells cut down on fighting and give females room to breed.

Can shell dwellers live in a 10-gallon tank?

Yes. A 10-gallon (38 L) tank can hold a pair or trio of multies. A longer, larger tank is better for a growing colony or if you add tank mates.

Do multies need hard water?

Yes. They come from Lake Tanganyika, which is hard and alkaline, so aim for pH 7.5–9.0 and at least 10 dGH.

Sources

We checked these references when writing this page. Values are for healthy long-term keeping, not survival limits. Last reviewed 2026-10-13. See our editorial policy.