Ocellatus Shell Dweller (Lamprologus ocellatus) is an intermediate-level freshwater fish that needs at least 20 gallons and 75-82°F. A tiny Tanganyikan cichlid that lives in empty snail shells on a sand bottom. It is feisty for its size, needs hard, alkaline water, and spends its day defending its shell and the sand around it.

Care facts at a glance

Scientific nameLamprologus ocellatus
FamilyCichlidae
OriginLake Tanganyika, Africa
Adult size2-2.5 in
Minimum tank20 gallons
Temperature75-82°F
pH7.8-9.0
TemperamentTerritorial toward its own kind, small and bold
Social behaviorPair or colony in a 20 gal or larger
Swim levelBottom, in shells
DifficultyIntermediate
DietCarnivore: small frozen foods, baby brine shrimp, fine pellets
Typical lifespan5-8 years

Quick tips

  • Provide one or more empty snail shells per fish and a deep sand bed.
  • Keep water hard and alkaline.
  • Choose tankmates that stay out of the bottom territory.

San Diego water

Naturally suited to San Diego's hard, alkaline tap water once it is dechlorinated (the city uses chloramine, so use a conditioner that handles it). Learn the numbers in our San Diego tap water guide.

Before you buy

Make sure your tank is cycled (how to cycle a tank), check your numbers with the water testing guide, and use the compatibility guide to check tankmates. These are general ranges; individual fish and local water vary.

Find it at Pet Zone

Pet Zone Tropical Fish is a San Diego aquarium store with two locations. Stock changes daily, so call ahead if you are after a specific species or plant. Shop online at petzonesd.com.

Pet Zone Convoy

4160 Convoy St, San Diego, CA 92111
(858) 987-0309
Open daily, 10am-6pm

Aquascaping, planted tanks

Pet Zone Mid-City

4266 University Ave, San Diego, CA 92105
(619) 283-1812
Closed Monday; Tue-Fri 10:30am-6pm, Sat 11am-6pm, Sun 11am-4pm

Monster fish, koi