A hardy, colorful South American dwarf cichlid named for the male's spiky, cockatoo-like dorsal fin. One of the most beginner-friendly apistos, it breeds readily and suits planted, soft-water community tanks.
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Small dwarf cichlid; males reach about 3-3.5 in (7-9 cm), females smaller at about 2 in (5 cm).
Lifespan
3–5 years
Social needs
group
Native region
South America (upper Amazon basin in Peru, Colombia, and Brazil)
Origin
New World
Climate
🌴 Tropical
Water type
💧 Freshwater
Family
Cichlidae
Genus
Apistogramma
Part of the Dwarf Cichlids
Small, intelligent, colorful cichlids - mostly South American Apistogramma and rams plus West African species - prized for big personality in modest planted tanks. Many are cave- or substrate-spawners with rewarding parental behavior, suited to soft-water community setups.
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
Photo coming soon
Minimum
Pair tank
20 gal / 76 L long planted
Apistogramma cacatuoides is a peaceful dwarf cichlid. 20-gal long minimum for a pair or 1M/2F harem, with sand, soft slightly acidic water, leaf litter, and multiple cave hides per female.
Photo coming soon
Recommended
Harem planted display
29 gal / 110 L long planted
29-gal long planted with one male and 2–3 females, each with her own cave, plus dither fish (small tetras). Stunning fin display and active parental care.
Photo coming soon
Ideal
Amazon biotope harem
40 gal+ / 151 L+ Amazon biotope
Amazon-style biotope with leaf litter, driftwood, very soft acidic water, harem, and dithers. Excellent welfare and constant breeding behaviour.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Photo coming soon
Egg
Fish eggs are small, translucent spheres, often laid in clutches on plants, substrate, or in a nest — or carried/brooded by a parent in livebearing and mouth-brooding species. A dark eye spot and the curled embryo become visible inside as development progresses.
Photo coming soon
Fry
Newly hatched fry are tiny and semi-transparent, frequently still carrying a yolk sac that fuels them before they feed freely. They lack full fin structure and adult coloration, staying near cover until they can swim and forage on their own.
Photo coming soon
Juvenile
Juveniles look like miniature adults but with developing fins and muted or different markings; many species shift pattern and color as they mature. Growth is rapid at this stage given clean water and steady feeding.
Adult
Adults show the species' full size, finnage, and mature coloration, and are sexually mature. Many fish develop sex-specific differences in size, color, or fin shape, which can intensify during breeding.
Color & pattern variants
Natural variants occur in the wild; selectively bred (man-made) variants were developed in captivity.
A single male with a small harem of females needs a minimum of about 20 gallons (76 L), with footprint mattering more than height; longer tanks let you partition territories. Aim for warm, soft, slightly acidic water: temperature 75-82 F (24-28 C), pH around 6.0-7.0, and soft to moderately soft hardness, though tank-bred stock tolerates a wider range than wild fish.
These are bottom-oriented fish from leaf-littered Amazonian backwaters, so they want gentle flow, broken sightlines, and plenty of cover. Dense planting, driftwood, leaf litter, and several enclosed caves create the territorial boundaries and spawning sites they need; subdued lighting and floating plants help them feel secure and show their best color.
Substrate
Use a fine sand or smooth fine-gravel substrate so the fish can sift and forage naturally without damaging their mouths. Layer in dried leaf litter (Indian almond/catappa, oak, or beech) over the base to mimic the tannin-stained forest streams they come from.
Equipment & setup
A gentle filter (sponge or low-flow internal/canister) keeps current soft and protects fry, and a reliable heater is essential for the warm tropical range. Modest lighting suits both the fish and the dim biotope; no CO2 is required, though it helps if you keep demanding plants.
Diet
A micro-predator that takes small live, frozen, and prepared foods. Offer a varied diet of frozen or live bloodworms, daphnia, brine shrimp, cyclops, and microworms, alongside quality micro-pellets and crushed flake. Live and frozen foods bring out spawning condition and the deepest coloration, while a sinking staple ensures these bottom-feeders get their share. Feed small amounts once or twice daily.
Behavior & temperament
Generally peaceful for a cichlid and reef-of-the-river community-safe, but males are territorial toward each other and both parents become defensive when guarding fry. Keep one male with two or more females to spread aggression, and pair with peaceful, mid- to upper-water dither fish such as small tetras, pencilfish, or rasboras that occupy a different zone. Avoid boisterous bottom-dwellers and other cave-spawners that compete for the same floor space.
Health
Susceptible to the usual freshwater issues: ich (white spot), bacterial fin and skin infections, and sensitivity to nitrate and poor water quality, which shortens lifespan and dulls color. Wild-caught fish may carry internal parasites and need careful acclimation. Stable, clean, soft water and regular partial water changes are the best prevention; quarantine new arrivals and treat ich promptly with raised temperature and appropriate medication.
Tips, DIY & hacks
Add Indian almond leaves to release tannins that lower pH, suppress microbes, and trigger spawning. Provide coconut-shell or ceramic caves as spawning sites, and once eggs are laid let the female tend them; rear fry on baby brine shrimp and microworms once free-swimming.
