Lambchop Rasbora

Lambchop Rasbora key facts

Care level

Beginner-friendly

Lifespan

3-5 years

Size

Up to 2.5cm SL

Temperature

23〜28℃

Diet

Small dried foods and live or frozen brine shrimp and daphnia

Tank

Seriously Fish suggests a 60 x 30cm base. Broad-leaved plants double as spawning sites, and floating plants that soften the light improve colour. Driftwood or peat to tint the water lightly mimics the natural habitat.

Water Temperature & Quality

Seriously Fish gives 23-28C, pH 5.5-7.5 and 1-10 dGH, while FishBase records pH 6.0-6.5 and hardness to 12 dH in the wild. Soft, slightly acidic water is ideal, but it adapts widely and makes no strict demands.

Tank Mates

Very peaceful and an ideal community fish. Small cyprinids, characins, livebearers, dwarf cichlids, catfishes and loaches all suit it, but it is tiny, so avoid anything that could swallow it.

Diet & Feeding

Its mouth is small, so use finely graded dried food. Live or frozen brine shrimp and daphnia improve colour. Feed small amounts several times a day.

Breeding & Spawning

Unlike most small cyprinids it attaches its eggs to the undersides of broad leaves or decor rather than scattering them, and shows no parental care. In good condition it spawns often, and in a mature, densely planted tank a few fry may survive unaided.

Health & Notes

Groups of eight to ten or more settle it and bring out colour; kept in small numbers it becomes timid and pale. It is easily confused with close relatives, so check the shape of the black mark and the ground colour when buying. The IUCN rates it Least Concern and it is not covered by CITES.

About Lambchop Rasbora

The Lambchop Rasbora is a small, hardy cyprinid with an orange body and black wedge marking, prized as an easy, peaceful shoaling fish for planted tanks.

7 things to know before welcoming a Lambchop Rasbora

1. 1Keep Them in a Group

   Lambchop Rasboras naturally shoal with their own kind rather than staying alone. Keeping at least several, ideally around ten, lets them display their natural shoaling behavior and reduces stress.

2. 2A Natural Fit for Planted Tanks

   Their orange bodies and black wedge markings stand out beautifully against green plants, making them a favorite for aquascaped tanks. Floating plants or driftwood give them spots to retreat to when they feel unsettled.

3. 3A Very Small Fish

   Adults reach only about 2.5 cm, so they're one of the smaller community fish. Avoid housing them with large or aggressive species that might see them as prey or bully them.

4. 4Calm but Somewhat Shy

   They're peaceful by nature and rarely bother other fish, but in small numbers or alone they tend to hide. A proper shoal and some cover will bring out their more confident, natural behavior.

5. 5Small Mouths Need Small Food

   Their tiny mouths struggle with oversized food, which often ends up uneaten. Offer small-grain pellets or crushed flakes in small amounts, spread across several feedings a day.

6. 6Sensitive to Sudden Water Changes

   While hardy overall, they don't do well with abrupt shifts in water quality or temperature. Change water gradually and match the temperature of new water before adding it, and avoid introducing them to a newly cycled tank.

7. 7Prepare the Tank Before You Bring Them Home

   Set up enough swimming space for a shoal along with plants for cover, and make sure the tank is fully cycled before introducing them. They're considered an easy species for beginners, but getting the initial setup right helps them thrive long term.

Frequently asked questions about Lambchop Rasbora

Q.How many should I keep together?

A.They rarely settle well alone, so keeping at least 5-6, ideally around ten, is recommended. Larger groups tend to show more natural shoaling behavior.

Q.Can they live with other fish?

A.Thanks to their peaceful temperament, they mix well with other calm tropical fish of similar size. Just avoid larger or more aggressive fish that could see them as prey or bully them.

Q.Do I need live plants to keep them?

A.Live plants aren't strictly required, but without cover they tend to stay hidden and seem less settled. Floating plants or driftwood give them places to retreat to and encourage more natural shoaling.

Q.Are they suitable for beginners?

A.Yes, their peaceful and hardy nature makes them a good choice for beginner fishkeepers. Basic care like regular water changes is enough to keep them healthy.

Q.How big do they get?

A.Adults reach a maximum of about 2.5 cm, making them one of the smaller community fish. Part of their appeal is watching a shoal of these tiny fish move together.

Useful tools for Lambchop Rasbora care

Learn more about Lambchop Rasbora in the encyclopedia

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