Furry Diary

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Agassiz's Dwarf Cichlid

Apistogramma agassizii (Steindachner, 1875)

Also called Agassiz Zwergbuntbarsch, Agassizi's dwarf cichlid

SpeciesShort profile

From South America: the Amazon-Solimoes basin, from Peru's Ucayali and Maranon rivers through Brazil to the Capim River basin.123

At a glance the quick version

Length4.4 to 7.5 cm12
Sizesmall
Small enough for a modest planted tank
Colourful males with flowing fins
Devoted maternal care of eggs and young
21

Looks how to spot one

Small, slender dwarf cichlid

A compact, elongated little cichlid; males grow bigger, brighter and carry longer, more flowing fins than the smaller females.23

Colourscolour varies by wild localitymany selectively bred ornamental forms2

Personality what they are like

Territorial but generally manageable; tank-bred fish fit well into a calm community of small, peaceful species.23

Daily activity how busy a day looks

Moves around the lower levels of the tank, patrolling a small territory among plants, wood and leaf litter.21

Grooming and care the hands-on bits

Offer caves, wood and plants as visual breaks, plus some leaf litter, and keep the water clean with regular partial changes.32

Home where they are happiest

Warm, soft, acidic water of about 22 to 29 C, pH roughly 5 to 7 (lower for wild fish) and up to about 10-12 dGH, in a tank with a base of at least 60 x 30 cm for a pair.21

Food basics what goes in the bowl

Mostly a meat eater that picks small invertebrates off the bottom; give live or frozen brine shrimp, daphnia and bloodworm, plus good pellets.21

Company who they like around

Often kept as one male with several females; tetras and other small schooling fish make good company, but avoid other dwarf cichlids.132

The story where it all began

Franz Steindachner described the species in 1875 and named it after the Swiss-American naturalist Louis Agassiz. It is widely sold in the aquarium trade, with many selectively bred colour forms.13

Fun facts for the dinner table

  1. 1

    Its name honours Louis Agassiz, the Swiss-American zoologist and geologist.3

  2. 2

    The female lays her eggs on the ceiling of a cave and can produce up to about 150 eggs in one spawning.1

  3. 3

    It has an unusually wide range for an Apistogramma, and scientists suspect it may actually be several closely related species.3

  4. 4

    Wild fish in forest streams eat mostly adult insects, while those near pastures prefer insect larvae.3

Recognised by the official bits

IUCN Red List
Least Concern (assessed 30 November 2020)1
Taxonomy
Described by Steindachner in 1875; family Cichlidae, part of the Apistogramma trifasciata lineage1
DATZ A-number system
Locality and colour forms are tracked under the German DATZ 'A' numbering2

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Agassiz's Dwarf Cichlid. It is our own starting plan, not a vet's advice, and you can change every line in the app.

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Where this comes from

Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at support@furrydiary.app and we will fix it.

  1. FishBase: Apistogramma agassizii fishbase.seused for distribution, size, water parameters, IUCN, breeding, aquarium notes
  2. Seriously Fish: Apistogramma agassizii seriouslyfish.comused for size, water parameters, tank size, diet, behaviour, colour forms
  3. Wikipedia: Apistogramma agassizii en.wikipedia.orgused for etymology, distribution, diet in the wild, tankmates

Checked 2026-09-30. Text is written in our own words from these sources.