Apistogramma Care Guide: Tank Setup, Diet, Tank Mates And Breeding

Apistogramma need a mature, cycled aquarium with fine sand, several caves, broken sightlines, gentle filtration, and clean water matched to the exact species. For most single fish or pairs, a 20-gallon-long tank is a safer starting point than a 10-gallon tank. These small cichlids spend much of their time near the bottom and can defend that space fiercely, especially when eggs or fry appear.

For many commonly sold warm-water species, 76-80°F (24-27°C) and a pH near 6.0-7.0 make a practical starting range. That is not a rule for the whole genus. Apistogramma borellii prefers cooler water, while some wild-caught blackwater species need very soft, acidic conditions. Ammonia and nitrite must remain at 0 ppm.

My direct recommendation for a first Apisto is a captive-bred A. cacatuoides. It usually handles aquarium life better than delicate wild-caught species, but it still belongs in an established tank, not a brand-new setup.

Apistogramma Care at a Glance

Care need	General starting point
Scientific name	Apistogramma species
Common name	Apisto or South American dwarf cichlid
Adult size	Males: about 2.5-3.5 inches; females: about 1.5-2.5 inches
Lifespan	Often around 3-5 years, depending on species and source
Care level	Intermediate
Tank size	20-gallon long for a single fish or pair; larger for harems or mixed cichlid tanks
Temperature	Often 72-82°F (22-28°C), but species must be checked
pH	Often 5.5-7.0; some captive-bred species tolerate higher values
Water hardness	Usually soft to moderately hard, depending on species
Ammonia and nitrite	0 ppm
Diet	Micropredator; small sinking foods plus frozen or live foods
Temperament	Curious and territorial, especially during breeding
Tank level	Bottom and lower-middle water
Breeding	Cave-spawning egg layer with parental care

This table is a planning shortcut, not a substitute for checking the exact species. Even popular Apistos can have very different needs.

What Is an Apistogramma? Characteristics, Size and Behavior

Apistogramma is a large genus of small South American cichlids. The aquarium trade often shortens the name to “Apisto.” Popular species include the cockatoo dwarf cichlid (A. cacatuoides), Agassiz’s dwarf cichlid (A. agassizii), umbrella dwarf cichlid (A. borellii), MacMaster’s dwarf cichlid (A. macmasteri), and three-striped dwarf cichlid (A. trifasciata).

They are called dwarf cichlids because most stay under about 3.5 inches. Small does not mean passive. An adult female guarding a cave can make a much larger fish regret coming downstairs.

Apistos are not schooling fish. They form and defend territories near caves, wood, roots, plants, and leaf litter. Many are curious and learn that the person near the glass often means food. They also sift fine sand through their mouths while looking for tiny edible animals.

Rams are also South American dwarf cichlids, but German blue rams and Bolivian rams are not Apistogramma. They belong to the genus Mikrogeophagus.

How big do Apistogramma get?

Adult males commonly reach about 2.5-3.5 inches, while females are often closer to 1.5-2.5 inches. The exact size depends on species, sex, age, and whether a measurement includes the tail.

For example, Practical Fishkeeping lists male A. cacatuoides at about 3 inches and females at about 2 inches. FishBase records a maximum standard length of 5 cm for A. cacatuoides, which excludes the tail. Different measuring methods explain why care sheets sometimes appear to disagree.

How long do Apistogramma live?

Three to five years is a reasonable expectation for many Apistogramma kept in aquariums, but reliable lifespan records are limited and claims vary widely. Species, genetics, age at purchase, water quality, diet, and long-term stress all change the result.

Are Apistogramma aggressive?

Apistos are usually calmer than large cichlids, yet they are territorial. Aggression rises when two males compete, a pair does not get along, or a female protects eggs and fry. Tank layout often matters more than the fish’s small size.

Are Apistogramma Good for Beginners?

Apistogramma are better for an aquarist’s second or third tank than their first one. They need clean, stable water and a layout that gives each fish a place to retreat. Some wild-caught fish also arrive thin, stressed, or unwilling to eat dry food.

A beginner who can cycle a tank, test water, perform steady water changes, and spot bullying can keep a captive-bred Apisto successfully. Someone setting up their first aquarium today should wait until the tank and their maintenance routine are stable.

Which Apistogramma is best for beginners?

Species	Why people choose it	Main warning
A. cacatuoides	Widely available, bold, colorful, and often more tolerant of harder water when captive-bred	Still territorial during breeding and needs several caves
A. borellii	Smaller and often calmer than many Apistos	Needs cooler conditions than warm-water community fish
A. agassizii	Many color forms and strong markings	Often does better in softer, more acidic water, especially when wild-caught

For a first Apisto, choose a healthy captive-bred fish from a seller who can name the species and tell you its current water conditions. A color label such as “double red” is a strain name, not the full species name.

Where Do Apistogramma Come From? Origin and Natural Habitat

Apistogramma come from South America. Different species live across the Amazon, Orinoco, Paraná, and Paraguay drainage systems, along with smaller connected waterways.

Their habitats are not all the same. Some live in dark blackwater stained by leaves and wood. Others occur in clearer water or sediment-rich whitewater areas. Many stay near slow margins, shallow flooded forest, small streams, or pools where fallen leaves, branches, roots, and fine sediment cover the bottom.

That difference matters in an aquarium. An A. agassizii from soft Amazon water should not automatically receive the same settings as a captive-bred A. cacatuoides or a cooler-water A. borellii.

Apistogramma Colors, Patterns and Markings

Male Apistogramma usually carry the strongest colors and longest fins. Depending on the species and strain, they may show red, orange, yellow, blue, turquoise, black, or silver. Many have a dark stripe running from the eye toward the tail, plus spots or vertical bars that change with mood and social status.

Common aquarium forms include:

A. cacatuoides Double Red, Triple Red, Super Red, and Orange Flash
A. agassizii Fire Red, Double Red, Blue, and Gold forms
A. macmasteri Red Shoulder and other red-finned domestic forms
A. borellii Opal and blue-yellow forms

Females often look beige, grey, or muted yellow when not breeding. A female guarding eggs or fry can turn bright yellow with sharp black markings. A stressed fish may become pale, dark, or strongly barred, so color is also a clue to what is happening in the tank.

Do not identify a fish by color alone. Domestic strains, young fish, and subdominant males can be misleading. Ask for the scientific name, and compare body shape, fin shape, facial marks, and collection information when available.

Male vs Female Apistogramma: How to Tell the Difference

Adult males are usually larger, more colorful, and more likely to have extended dorsal, pelvic, or tail fins. Females are generally smaller with shorter fins. Many females become yellow and black when they are ready to spawn or caring for young.

Sexing juveniles is harder. A subdominant male may suppress his color and resemble a female when a stronger male is nearby. Store lighting and stress can hide normal markings too.

Signs of a male Apistogramma

Larger adult body
Longer or more pointed fins
Stronger species-specific color
More display behavior toward rivals

Signs of a female Apistogramma

Smaller adult body
Shorter, rounder fins in many species
Yellow breeding color with black markings
Strong interest in caves when preparing to spawn

No single sign works for every species. If breeding matters, buy a confirmed pair from a breeder or let a group of juveniles mature in a suitably large tank. Have a plan for extra males.

What to Ask Before Buying an Apistogramma

Write down these answers before the fish enters your tank:

What is the exact scientific name and color form?
Is the fish captive-bred or wild-caught?
What are the seller’s temperature, pH, GH, and KH?
Does the fish eat pellets, frozen food, or only live food?
Is it sold as a single fish, confirmed pair, or unsexed juvenile?
Are there sunken bellies, white waste, fast breathing, or damaged fins in the seller’s tank?

These answers tell you far more than a label that simply says “assorted Apisto.”

What Tank Size Do Apistogramma Need?

A 20-gallon-long aquarium is the best general starting size for one Apistogramma or a compatible pair. Its 30-inch footprint gives bottom-dwelling fish more usable territory than a taller tank with similar water volume.

A 10-gallon tank can work for a single small Apisto or as a carefully managed breeding tank, but it gives a pair very little room to escape each other. A harem or community containing more than one Apisto territory usually needs at least 30-40 gallons, often more depending on footprint, species, and tank mates.

Aquarium Co-Op also recommends 20 gallons or larger for a single fish or pair, while noting that experienced breeders sometimes use 10-gallon spawning tanks. A 60 cm or 24-inch tank is also recommended for a pair with other fish by Practical Fishkeeping.

Use the aquarium fish by tank size guide to compare the rest of your stocking plan.

How to Set Up an Apistogramma Tank

1. Cycle the aquarium fully

Apistos should enter a mature biological system, not a tank that has only been filled for a few days. The nitrogen cycle must process fish waste without leaving ammonia or nitrite in the water.

Read the fish tank cycling guide and the separate explanation of the aquarium nitrogen cycle before buying the fish.

2. Use fine sand

Fine, smooth sand lets Apistos sift naturally. Coarse gravel can trap waste and makes that feeding behavior harder. Keep the sand layer easy to clean rather than building a deep bed without a clear reason.

3. Add more caves than fish

Use ceramic caves, coconut shells, small flowerpots placed on their sides, wood gaps, or rock shelters that cannot collapse. Give each female at least one private cave, plus an extra option.

Face cave openings in different directions. If you can stand in front of the aquarium and see directly into every cave at once, the fish can probably see each other too. Add wood, plants, stones, or leaf litter to break those sightlines.

4. Build cover without blocking the bottom

Wood, roots, plants, and dried aquarium-safe leaves make the fish feel secure. Keep open sand patches for feeding and sifting. Low-light plants such as Anubias, Java fern, Cryptocoryne, and floating plants work well in many setups. See the low-light aquarium plants guide for more choices.

Leaf litter and botanicals are optional for many captive-bred fish, but useful for natural cover. They release tannins and support small organisms that fry may graze on. They do not guarantee a lower pH when the water has strong buffering.

5. Use gentle filtration and protect the intake

A sponge filter or a gently adjusted power filter works well. Avoid blasting the caves with a strong current. Use a pre-filter sponge if breeding is possible so tiny fry cannot enter the intake.

6. Add a secure lid and subdued lighting

Apistos can jump when startled or chased. A lid closes that exit. Floating plants, wood, and shaded areas help nervous fish settle without forcing the entire tank into darkness.

For the basic equipment order, see the freshwater aquarium setup guide.

Best Water Parameters for Apistogramma

There is no honest single parameter set for every Apistogramma. Use the exact species, whether it is captive-bred or wild-caught, and the seller’s current water as your starting information.

Species	Temperature	pH	General note
A. cacatuoides	About 72-84°F (22-29°C)	About 5.5-7.5 for many aquarium fish	Often the most forgiving choice, especially when captive-bred
A. agassizii	About 72-84°F (22-29°C)	About 4.0-7.0	Usually favors softer, more acidic water
A. borellii	About 60-79°F (16-26°C)	About 5.5-8.0	Cooler-water species that may not fit a hot community tank

The ranges above show reported limits, not a goal to swing between. Keep your chosen temperature and chemistry steady. Practical Fishkeeping’s Apistogramma species guide provides the species ranges used for comparison.

Safe water targets

Ammonia: 0 ppm
Nitrite: 0 ppm
Nitrate: Keep low and prevent a steady climb
Temperature: Stable within the chosen species range
pH, GH, and KH: Matched to the species and changed slowly

Do not pour in pH-lowering chemicals until you understand your KH. Low buffering can make pH unstable, while high buffering may cause the product to work briefly and then rebound. If breeding a soft-water species, reverse-osmosis water mixed and remineralized to a planned target is more controllable than repeated chemical corrections.

Apistogramma Care and Weekly Maintenance

Check the fish, temperature, and filter flow every day. Both fish should be able to leave a cave, eat, and rest without being chased nonstop.

Once a week, test the water and change about 20-30% as a starting routine. Match the new water’s temperature and treat chlorine or chloramine. Vacuum visible waste from open sand without removing every leaf or turning the entire bottom upside down.

Rinse reusable filter media gently in removed aquarium water when flow slows. Do not replace all biological media at once. Feed lightly before and after major maintenance so leftover food does not add to the disruption.

Signs the pair needs to be separated

One fish stays trapped behind equipment or at the surface
One fish stops eating because it cannot leave cover
Chasing continues across the full tank instead of ending at a territory edge
Fins become torn or the body shows bites
A breeding female will not allow the male near any safe area

More caves do not always repair an incompatible pair. Keep a divider or spare cycled tank ready, especially if you plan to breed them.

What Do Apistogramma Eat?

Apistogramma are micropredators that hunt insect larvae, tiny crustaceans, worms, and other small animals. In an aquarium, feed a varied protein-based diet sized for their small mouths.

Good choices include:

Small sinking cichlid pellets or soft granules
Frozen or live brine shrimp
Daphnia and similar small crustaceans
Frozen bloodworms as part of the rotation
Blackworms or other clean live foods from a trusted source

Feed adults once or twice daily. Offer only what they finish in about one or two minutes, and make sure food reaches the bottom. Fast surface fish can eat everything before an Apisto decides breakfast is worth leaving its cave for.

Captive-bred fish often accept prepared food quickly. Wild-caught fish may ignore pellets at first and need frozen or live food while settling in. Ask what the seller feeds before purchase, then move toward a varied diet gradually.

What Fish Can Live With Apistogramma? Best Tank Mates

Good Apistogramma tank mates are peaceful, comfortable in the same water, and likely to remain in the middle or upper part of the aquarium. A fish being labeled “community-friendly” does not make it suitable if it needs hard alkaline water or keeps invading the cave area.

Possible tank mates include:

Pencilfish
Hatchetfish in a tightly covered tank
Small peaceful tetras suited to the same temperature and pH
Small rasboras when their water needs overlap
Peaceful surface-dwelling fish that are too large to be swallowed

Small schooling fish can act as dither fish. Their calm movement may tell a shy Apisto that the area is safe. They also need their own proper group size and swimming room.

Tank mates to avoid or treat cautiously

Other male Apistogramma in a small tank
Aggressive or boisterous cichlids
Bettas in cramped setups
Fin-nipping barbs
Goldfish
Large predatory fish
Corydoras and other bottom fish in a small breeding tank
Dwarf shrimp or shrimplets you want to keep alive

Corydoras can live with Apistos in a large, well-planned community, but they do not respect breeding boundaries. A female guarding fry may attack them repeatedly. Shrimp are even less reliable because adult Apistos hunt small animals and will eat most baby shrimp they can catch.

How Many Apistogramma Should You Keep Together?

One Apistogramma can live alone and still show normal foraging and territorial behavior. A compatible pair works in a well-arranged 20-gallon-long tank, but “pair” does not mean the fish will always like each other.

Some species naturally use a harem system, often one male with two or more females. Others may form closer pairs. Do not apply the popular one-male-to-three-female rule to every species or squeeze a harem into 20 gallons. Each female needs her own cave and territory, with barriers that stop constant eye contact.

Two males usually need a much larger footprint with separate territories. Adding females can increase fighting rather than fix it.

How Do Apistogramma Breed?

Most Apistogramma are cave spawners. The female lays adhesive eggs on the ceiling or wall of a cave, then guards and fans them. The male often defends a wider territory, although a breeding female may drive him away if the tank is small.

The eggs usually hatch within several days. The young remain near the cave while using their yolk sacs, then become free-swimming several days later. Timing changes with species and temperature.

Step-by-step breeding setup

Confirm the species and sex of both fish.
Use a cycled tank with a sponge filter and several caves.
Block sightlines so the male and female can retreat.
Condition the adults with varied live and frozen foods.
Match the water to that species’ breeding needs.
Watch for the female’s yellow breeding color and cave guarding.
Feed free-swimming fry infusoria or another suitable first food, followed by newly hatched baby brine shrimp when they can take it.

Clutch size varies by species, female size, age, and condition. Expect dozens of eggs rather than relying on one fixed number. FishBase reports up to 80 eggs for A. cacatuoides and up to 150 for A. agassizii, which shows how much species can differ.

Do not assume both parents are safe because they spawned together. Watch for injuries and remove one adult if it cannot escape. Community fish may also eat eggs or fry, even when they leave the adults alone.

Common Apistogramma Problems and First Checks

What you notice	Common possibilities	Check first
Hiding and pale color	New-tank stress, bright light, missing cover, bullying, poor water	Ammonia, nitrite, temperature, and whether the fish can reach a safe cave
Fast breathing or staying near the surface	Low oxygen, ammonia, nitrite, excess heat, gill trouble	Water test, filter flow, and surface movement
Sunken belly or white stringy waste	Poor feeding, internal parasites, disease, recent import stress	Whether the fish eats and whether it was wild-caught
Torn fins or missing scales	Pair aggression, male competition, sharp decor	Watch the tank quietly and map where chasing begins and ends
Refusing dry food	Stress or lack of familiarity with prepared food	Seller’s diet, frozen-food response, and tank mate competition

When several fish act sick at once, test the water before choosing medicine. If ammonia or nitrite is detectable, make a partial water change with conditioned, temperature-matched water and test again. Increase surface movement if fish are gasping.

Quarantine new fish when possible. Wild-caught Apistos deserve especially close observation for weight loss, parasites, and feeding trouble. Avoid mixing medications without identifying the likely problem.

Related Apistogramma and Dwarf Cichlid Guides

Before choosing another cichlid, compare adult size, water chemistry, territory, and breeding behavior in the types of cichlids guide.

FAQs

Can Apistogramma live in a 10-gallon tank?

A single small Apisto or a carefully managed breeding pair may live in a 10-gallon tank, but it leaves little escape room if aggression begins. A 20-gallon-long tank is the safer permanent starting point for most pairs.

Can one Apistogramma live alone?

Yes. Apistogramma are territorial cichlids rather than schooling fish. A single fish can forage, display, and interact normally without a mate.

Do Apistogramma need blackwater?

Not every species does. Some come from blackwater, while others occur in clear or white water. Captive-bred A. cacatuoides often live well without dark water, provided their chemistry is suitable and the tank has cover.

Do Apistogramma need soft water?

Many species favor soft water, and some need very soft conditions to breed well. Captive-bred A. cacatuoides can tolerate more mineral content than many blackwater species. Check the exact species and seller’s water.

Can Apistogramma live with shrimp?

Apistos may live beside adult shrimp for a time, but they are small-animal hunters. Baby shrimp are likely to be eaten, and small adults may also disappear. Do not choose this fish for a shrimp colony you want to protect.

Are Apistogramma peaceful community fish?

They can live in a peaceful community when the tank is large enough and tank mates stay away from the bottom territory. Breeding females and competing males can become strongly territorial.

How many Apistogramma can live in a 20-gallon tank?

One fish or a compatible pair is the safest general plan. A trio may work for certain species in a carefully arranged tank, but it should not be treated as a default rule. A harem usually needs more floor space.

What is the best Apistogramma for a beginner?

A healthy, captive-bred Apistogramma cacatuoides is usually the safest first choice. It still needs a cycled tank, clean water, fine sand, caves, and a backup plan if a pair fights.