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Macmaster's Dwarf Cichlid

Apistogramma macmasteri

Also called Macmaster's Apisto, Red-Shouldered Dwarf Cichlid, Villavicencio Dwarf Cichlid

SpeciesShort profile

From Colombia and Venezuela, upper Rio Orinoco drainage, especially the Meta River basin123

At a glance the quick version

Length4 to 7.5 cm435
Lifespan3 to 5 years36
Sizetiny

Males reach about 6 to 7.5 cm, females about 4 to 5 cm in aquariums.

Beautiful colours
Small size
Interesting breeding behaviour
Suitable for planted tanks
32

Looks how to spot one

Scales

A small, compact cichlid with a typical oval body shape. Males have a light base colour with a bright red mask on the head and often red on the shoulders. Females are duller grey but turn bright yellow with black spots when breeding. Selective breeding has produced vivid red and gold varieties.52

Coloursredgoldyellowgrey25

Personality what they are like

Generally peaceful and sometimes shy, but becomes territorial and can be aggressive when breeding. Best kept as a harem with one male and several females.576

Daily activity how busy a day looks

Active during the day, mostly swimming near the bottom. Needs plenty of hiding places and a well-structured tank.23

Grooming and care the hands-on bits

Requires clean, soft, slightly acidic water. Regular water changes are important. Sensitive to nitrite, nitrate and ammonium. A sandy substrate and dark hiding spots are recommended.52

Home where they are happiest

Needs an aquarium of at least 75 litres (20 gallons). Provide a sandy bottom, driftwood, caves, broad-leaved plants and floating plants. Water temperature 22 to 28°C, pH 5.0 to 7.0, soft water. In the wild they live in shallow, tannin-stained waters with leaf litter.352

Food basics what goes in the bowl

Carnivorous. Accepts live and frozen foods such as bloodworms, brine shrimp, daphnia and cyclops, and will also take high-quality flakes and pellets. Feeding brine shrimp helps bring out red colour.325

Company who they like around

Keep one male with several females (harem). A male with only one female may stress her. They are territorial when breeding, so provide plenty of cover. Not a shoaling fish.75

The story where it all began

Apistogramma macmasteri was described by Dr. Sven Kullander in 1979 from fish collected in the Colombian state of Meta. It was named after Mark Macmaster, a dwarf cichlid enthusiast who brought attention to the species in the early 1970s. The species likely entered the hobby in the 1960s but only became widely available in the 1980s. Today, most fish sold are tank-raised. Selective breeding has produced colourful varieties such as 'Super Red', 'Red Shoulder' and gold forms, though these names are not standardised. Many fish sold as Apistogramma viejita are actually A. macmasteri or hybrids.2

Recognised by the official bits

ITIS
Valid species Apistogramma macmasteri Kullander, 19798

Popularity Commonly available in the aquarium trade, especially as tank-raised fish.2

The care rhythm a typical week and year

A typical home-care rhythm for a Macmaster's Dwarf Cichlid. A starting point, not a vet's advice.

Owner questions the things everyone asks

How often should I feed my Macmaster's Dwarf Cichlid?

Feed your Macmaster's Dwarf Cichlid small amounts once or twice daily. They are carnivorous and enjoy live and frozen foods like bloodworms and brine shrimp. Furry Diary's starting plan suggests feeding once or twice a day.325 Pet Wiki plan

What does a Macmaster's Dwarf Cichlid eat, and what should it never eat?

Macmaster's Dwarf Cichlids are carnivorous and thrive on live and frozen foods such as bloodworms, brine shrimp, daphnia, and cyclops, along with high-quality flakes and pellets. There is no specific list of foods to avoid, so ask your vet for guidance on what not to feed.325

How much space does a Macmaster's Dwarf Cichlid need?

Your Macmaster's Dwarf Cichlid needs an aquarium of at least 75 litres (20 gallons). Provide a sandy bottom, driftwood, caves, and broad-leaved plants for a comfortable home.352

What temperature, light or water does a Macmaster's Dwarf Cichlid need?

Keep the water soft and slightly acidic, with a temperature between 22 and 28°C and a pH of 5.0 to 7.0. Use moderate lighting with floating plants to create shaded areas, as they come from tannin-stained waters with leaf litter.352

How often should I clean a Macmaster's Dwarf Cichlid's home?

Clean your Macmaster's Dwarf Cichlid's home weekly by changing about 25% of the water and testing water parameters. Also clean the glass weekly and rinse the filter monthly in old tank water, never tap water.52 Pet Wiki plan

Can a Macmaster's Dwarf Cichlid live with others?

Yes, Macmaster's Dwarf Cichlids can live with others, but best kept as a harem with one male and several females. They are generally peaceful but become territorial when breeding, so provide plenty of hiding places.756

How long does a Macmaster's Dwarf Cichlid live?

Macmaster's Dwarf Cichlids typically live for 3 to 5 years with proper care.36

Can I handle a Macmaster's Dwarf Cichlid?

Handling a Macmaster's Dwarf Cichlid is not recommended as it can cause stress and damage their scales. It varies by situation, so ask a vet or good breeder for specific advice.

Written from the sources on this page, a few checked guides (VCA, ASPCA, RSPCA) and Pet Wiki's own starting care plan. A friendly guide, not a vet's advice.

Where this comes from

Every fact on this page has a numbered source. Spotted an error? support@petwiki.app.

  1. en.wikipedia.org: Apistogramma macmasteri en.wikipedia.orgused for origin
  2. dwarfcichlid.com: macmasteri dwarfcichlid.comused for origin, coat or body, colours, best traits, activity needs, grooming or care, habitat needs, diet basics, history, popularity, fun fact
  3. aquariumstoredepot.com: macmasters dwarf cichlid aquariumstoredepot.comused for origin, length cm, lifespan years, best traits, activity needs, habitat needs, diet basics
  4. practicalaquariums.com: apistogramma macmasteri practicalaquariums.comused for length cm
  5. aquainfo.nl: apistogramma macmasteri aquainfo.nlused for length cm, coat or body, colours, temperament, grooming or care, habitat needs, diet basics, social needs, fun fact
  6. tropicaltreasureswyo.com: apistogramma macmasteri care guide tropicaltreasureswyo.comused for lifespan years, temperament
  7. fishkeeper.co.uk: macmasters apisto fishkeeper.co.ukused for temperament, social needs
  8. itis.gov: SingleRpt itis.gov

Checked 2026-11-03. Text is written in our own words from these sources.