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Similis Shell Dweller
Neolamprologus similis
📍 Lake Tanganyika, Africa
Neolamprologus similis is a small, peaceful shell-dwelling cichlid endemic to Lake Tanganyika in Africa. These charming fish are highly social and form stable pairs or small groups, making them ideal for community aquariums with adequate shell shelter. Their fascinating behavior of constructing and defending shell homes provides excellent viewing opportunities for aquarists.
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Care Guide
Diet
Feed small high-quality pellets, micro granules, and occasional live foods such as brine shrimp or daphnia. Supplement with vegetable matter like spirulina flakes. Feed once or twice daily in small portions that can be consumed within 2-3 minutes.
Behavior
Similis shell dwellers are highly social and peaceful, spending most of their time near shell structures where they rest and breed. They exhibit fascinating behavior of rearranging sand and shells to create optimal living spaces. These fish are active during the day and interact peacefully with conspecifics, often forming stable pairs.
Breeding
Breeding is relatively easy in established tanks with adequate shell shelter. Pairs will select a shell and lay eggs inside, with both parents protecting the brood. Fry emerge after 2-3 weeks and can be fed infusoria or liquid fry food initially. Provide multiple shells to encourage breeding and reduce aggression.
Tank Mates
Small, peaceful schooling fish that occupy different water zones
Algae eaters that stay on substrate and don't compete for shells
Bottom dwellers that coexist peacefully with shell dwellers
Small invertebrates that don't threaten or compete with similis
Peaceful algae-eating shrimp that occupy different ecological niches
Common Diseases
Ich (Ichthyophthirius multifiliis)
White spots on body and fins, rapid breathing, lethargy, flashing against objects
Raise temperature gradually to 28-29°C (82-84°F), perform daily 25% water changes, use aquarium salt at 1 teaspoon per gallon, or treat with copper-free ich medication for 7-10 days
Fin Rot
Frayed or deteriorating fins, discoloration at fin edges, lethargy
Improve water quality with frequent water changes, remove any sharp objects, treat with antibacterial medication or salt baths, ensure proper nutrition
Bloat (Malawi Bloat)
Swollen abdomen, loss of appetite, difficulty swimming, pale coloration
Perform large water changes, feed high-quality varied diet, avoid overfeeding, treat with antibiotics if bacterial infection suspected, maintain stable water parameters
Parasitic Infections
Excessive scratching, visible parasites, weight loss, clamped fins
Quarantine affected fish, treat with antiparasitic medication, perform frequent water changes, maintain excellent water quality and hygiene
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Quick Facts
- diet
- Omnivore - small crustaceans, insect larvae, and vegetable matter
- lifespan
- 4-6 years
- max size
- 4 cm (1.5 in)
- tank size
- 10 gallons minimum
- temperament
- peaceful
Water it likes
- ph
- 7.5-8.5
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 10-20 dGH
- temperature
- 75–81°F (24–27°C)