Photo: Soulkeeper (Public domain) — via Wikimedia Commons
Goldeneye Dwarf Cichlid (Nannacara anomala)
A shimmering jewel from Guyana that fits comfortably in small tanks — and transforms into a fierce guardian the moment it spawns.
Will it live with a Goldeneye Dwarf Cichlid?
We compare each fish against your goldeneye dwarf cichlid on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- Adolf's Cory✅ CompatiblePeaceful · 5.5 cm · Medium care · 22–26 °C (72–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Adolf's Cory in a shoal of 6+ or it gets stressed and nippy.
- Agassiz's Corydoras✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Agassiz's Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Black Kuhli Loach✅ CompatiblePeaceful · 8 cm · Easy care · 23–28 °C (73–82 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Blood Red Tiger Pleco✅ CompatiblePeaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Bolivian Ram✅ CompatiblePeaceful · 8 cm · Medium care · 24–28 °C (75–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Brilliant Rasbora✅ CompatiblePeaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Brilliant Rasbora in a shoal of 6+ or it gets stressed and nippy.
- Burmese Loach✅ CompatiblePeaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Butterfly Hillstream Loach✅ CompatiblePeaceful · 6 cm · Hard care · 18–24 °C (64–75 °F)
- Compatible on the things that matter: shared water near 24–24 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Corydoras Catfish✅ CompatiblePeaceful · 6.5 cm · Easy care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Corydoras Catfish in a shoal of 6+ or it gets stressed and nippy.
- Elegant Cory✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Elegant Cory in a shoal of 6+ or it gets stressed and nippy.
- False Julii Corydoras✅ CompatiblePeaceful · 6 cm · Easy care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep False Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
- German Blue Ram✅ CompatiblePeaceful · 6 cm · Hard care · 27–30 °C (81–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 27–28 °C — no size, zone or temperament conflicts.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Hillstream Loach✅ CompatiblePeaceful · 6 cm · Hard care · 20–24 °C (68–75 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Kuhli Loach✅ CompatiblePeaceful · 10 cm · Easy care · 24–30 °C (75–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Leopard Frog Pleco✅ CompatiblePeaceful · 9 cm · Medium care · 25–30 °C (77–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 25–28 °C — no size, zone or temperament conflicts.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Molly✅ CompatiblePeaceful · 10 cm · Easy care · 23–28 °C (73–82 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Murray River Rainbowfish✅ CompatiblePeaceful · 11 cm · Easy care · 15–26 °C (59–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
- Peppered Corydoras✅ CompatiblePeaceful · 7 cm · Easy care · 18–26 °C (64–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Peppered Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Rio Negro Checkerboard Cichlid✅ CompatiblePeaceful · 7 cm · Hard care · 24–29 °C (75–84 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Slate Corydoras✅ CompatiblePeaceful · 6 cm · Medium care · 23–28 °C (73–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Slate Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Spotfin Corydoras✅ CompatiblePeaceful · 6.5 cm · Easy care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Spotfin Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Spotted Corydoras✅ CompatiblePeaceful · 7 cm · Easy care · 22–27 °C (72–81 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Spotted Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Sterbai Corydoras✅ CompatiblePeaceful · 6.5 cm · Medium care · 24–30 °C (75–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Keep Sterbai Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Thick-lipped Gourami✅ CompatiblePeaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- African Butterfly Cichlid⚠️ With cautionSemi-aggressive · 8 cm · Medium care · 22–28 °C (72–82 °F)
- Goldeneye Dwarf Cichlid and African Butterfly Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Agassiz's Dwarf Cichlid⚠️ With cautionSemi-aggressive · 9 cm · Medium care · 24–30 °C (75–86 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Amazon Puffer⚠️ With cautionPeaceful · 8 cm · Medium care · 23–28 °C (73–82 °F)
- Expect Goldeneye Dwarf Cichlid to harass Amazon Puffer at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Keep Amazon Puffer in a shoal of 6+ or it gets stressed and nippy.
- Badis⚠️ With cautionSemi-aggressive · 8 cm · Medium care · 22–28 °C (72–82 °F)
- Goldeneye Dwarf Cichlid and Badis can both be territorial; doable with space and dense planting, but watch for chasing.
- Bamboo Shrimp⚠️ With cautionPeaceful · 8 cm · Medium care · 22–27 °C (72–81 °F)
- Goldeneye Dwarf Cichlid is semi-aggressive and may chase or nip the smaller Bamboo Shrimp — plant heavily and break up sight lines.
- Adult Bamboo Shrimp might survive with Goldeneye Dwarf Cichlid, but expect the young to be eaten — plant heavily.
- Bandit Cichlid⚠️ With cautionSemi-aggressive · 9 cm · Medium care · 22–26 °C (72–79 °F)
- Goldeneye Dwarf Cichlid and Bandit Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 75 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
- Keep Bandit Cichlid in a shoal of 6+ or it gets stressed and nippy.
- Brichardi Cichlid⚠️ With cautionSemi-aggressive · 9 cm · Medium care · 24–28 °C (75–82 °F)
- pH preferences only just meet (Goldeneye Dwarf Cichlid 6–7.5 vs Brichardi Cichlid 7.8–9) — target the overlap and acclimate slowly.
- Goldeneye Dwarf Cichlid and Brichardi Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Clown Pleco⚠️ With cautionPeaceful · 9 cm · Medium care · 24–28 °C (75–82 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Cockatoo Dwarf Cichlid⚠️ With cautionSemi-aggressive · 8 cm · Medium care · 24–28 °C (75–82 °F)
- Goldeneye Dwarf Cichlid and Cockatoo Dwarf Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Congo Tetra⚠️ With cautionPeaceful · 8 cm · Medium care · 22–28 °C (72–82 °F)
- Expect Goldeneye Dwarf Cichlid to harass Congo Tetra at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Keep Congo Tetra in a shoal of 6+ or it gets stressed and nippy.
- Dwarf Gourami⚠️ With cautionSemi-aggressive · 8 cm · Medium care · 24–28 °C (75–82 °F)
- Goldeneye Dwarf Cichlid and Dwarf Gourami can both be territorial; doable with space and dense planting, but watch for chasing.
- Glass Catfish⚠️ With cautionPeaceful · 8 cm · Medium care · 23–28 °C (73–82 °F)
- Goldeneye Dwarf Cichlid and Glass Catfish are close in size, but the semi-aggressive one tends to dominate — add glass catfish in a group to spread the pressure.
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Glass Catfish in a shoal of 6+ or it gets stressed and nippy.
- Gold Barb⚠️ With cautionPeaceful · 7.5 cm · Easy care · 18–26 °C (64–79 °F)
- Goldeneye Dwarf Cichlid and Gold Barb are close in size, but the semi-aggressive one tends to dominate — add gold barb in a group to spread the pressure.
- Keep Gold Barb in a shoal of 6+ or it gets stressed and nippy.
- Pantanal Corydoras⚠️ With cautionPeaceful · 8 cm · Medium care · 22–27 °C (72–81 °F)
- Your 75 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
- Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Scissortail Rasbora⚠️ With cautionPeaceful · 8 cm · Easy care · 22–27 °C (72–81 °F)
- Goldeneye Dwarf Cichlid and Scissortail Rasbora are close in size, but the semi-aggressive one tends to dominate — add scissortail rasbora in a group to spread the pressure.
- Your 75 L tank is below the ~90 L this pairing really wants — crowding raises aggression.
- Keep Scissortail Rasbora in a shoal of 6+ or it gets stressed and nippy.
- Splashing Tetra⚠️ With cautionPeaceful · 8 cm · Medium care · 22–28 °C (72–82 °F)
- Goldeneye Dwarf Cichlid is semi-aggressive and may chase or nip the smaller Splashing Tetra — plant heavily and break up sight lines.
- Keep Splashing Tetra in a shoal of 6+ or it gets stressed and nippy.
- Alligator Gar⛔ Not recommendedAggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
- Goldeneye Dwarf Cichlid and Alligator Gar are both territorial and at least one is outright aggressive — expect serious fighting.
- Alligator Gar (250 cm) is big enough to swallow the 8 cm Goldeneye Dwarf Cichlid whole.
- Your 75 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
- Clown Knifefish⛔ Not recommendedAggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
- Two assertive fish, one genuinely aggressive: Goldeneye Dwarf Cichlid and Clown Knifefish will hold territory and clash.
- Clown Knifefish (90 cm) is big enough to swallow the 8 cm Goldeneye Dwarf Cichlid whole.
- Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Fire Eel⛔ Not recommendedSemi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
- Size gap is too large (100 vs 8 cm): Fire Eel will treat Goldeneye Dwarf Cichlid as food.
- Goldeneye Dwarf Cichlid and Fire Eel can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
- Koi⛔ Not recommendedPeaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
- Size gap is too large (90 vs 8 cm): Koi will treat Goldeneye Dwarf Cichlid as food.
- Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
- Redtail Catfish⛔ Not recommendedAggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
- Goldeneye Dwarf Cichlid and Redtail Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
- Redtail Catfish (120 cm) is big enough to swallow the 8 cm Goldeneye Dwarf Cichlid whole.
- Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
- Spotted Gar⛔ Not recommendedAggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
- Goldeneye Dwarf Cichlid and Spotted Gar are both territorial and at least one is outright aggressive — expect serious fighting.
- Goldeneye Dwarf Cichlid is bite-sized to a 90 cm predatory spotted gar — it will be eaten.
- Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
- Wels Catfish⛔ Not recommendedAggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
- Goldeneye Dwarf Cichlid and Wels Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
- Wels Catfish (300 cm) is big enough to swallow the 8 cm Goldeneye Dwarf Cichlid whole.
- Your 75 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
- Wolf Cichlid⛔ Not recommendedAggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
- Two assertive fish, one genuinely aggressive: Goldeneye Dwarf Cichlid and Wolf Cichlid will hold territory and clash.
- Goldeneye Dwarf Cichlid is bite-sized to a 72 cm predatory wolf cichlid — it will be eaten.
- Your 75 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
Compatibility is computed from each species' care data — a strong starting point, not a guarantee. Individual temperament varies, so always introduce new fish slowly and watch them.
Goldeneye Dwarf Cichlid care specs
- Care level
- Easy
- Breeding
- Easy
- Max size
- 8 cm (3.1 in)
- Min tank size
- 60 L (15.9 gal)
- Temperature
- 24–28 °C (75–82 °F)
- pH
- 6–7.5
- Hardness
- 1–10 dGH
- Lifespan
- 3–5 years
- Diet
- Omnivore
- Swim level
- Bottom
- Group size
- 2+ (shoaling)
- Family
- Cichlidae
- Origin
- South America — Guyana and western Venezuela (slow, blackwater streams)
What is a Goldeneye Dwarf Cichlid?
The Goldeneye Dwarf Cichlid (Nannacara anomala) is a compact South American cichlid that tops out at around 8 cm (3 in) for males and a notably smaller 4–5 cm (1.5–2 in) for females. What it lacks in size it compensates for in character: males in breeding condition display a full-body iridescence of shifting green, gold and blue that rivals much larger cichlids. Females are cryptically patterned in brown with a bold lateral stripe that darkens dramatically when they move into parental mode.
Nannacara anomala belongs to the family Cichlidae and is one of the more beginner-accessible dwarf cichlids. It does not demand the ultra-soft, extremely acidic water that some South American relatives require, tolerates a pH range of 6.0–7.5 and hardness up to 10 dGH, and will accept a wide variety of foods. Pair a male and female in a well-planted 60 L (16 gal) setup and you have one of the most rewarding small-cichlid experiences available in the hobby — with the bonus spectacle of attentive parental care to follow.
Where do Goldeneye Dwarf Cichlids come from in the wild?
Wild populations are found in Guyana and western Venezuela, in slow-moving or still blackwater creeks, flooded forest margins and leaf-litter pools where the water is soft, warm and tea-coloured with tannins. Current is minimal, submerged roots and fallen leaves carpet the bottom, and overhead canopy keeps light diffuse and low. These are not rivers in the conventional sense — they are intimate, shaded corridors where small cichlids rule small territories among the debris.
Most fish in the aquarium trade are captive-bred, which has made the species more adaptable than its wild cousins. That said, providing water that leans toward its native parameters — warm, soft, slightly acidic — consistently produces brighter colour, better health and more reliable breeding results. Think of the wild habitat whenever you are deciding on filtration flow rate, lighting intensity or substrate choice.
What tank size and setup does the Goldeneye Dwarf Cichlid need?
The practical minimum is 60 L (16 gal), though a 75–80 L (20 gal) long tank is a more comfortable choice once you factor in a breeding pair and a dither school. A longer footprint beats a tall one: this species is a bottom-dweller that patrols horizontally rather than vertically, and more floor space supports clearer territorial divisions when a pair is established.
Substrate: Fine sand or smooth gravel is ideal. The fish sift through and dig lightly, so sharp substrates can abrade their barbels and underside over time. A layer of dried leaves (Indian almond, oak) on part of the floor replicates the leaf-litter habitat, releasing mild tannins and providing extra shelter.
Hardscape and plants: Caves are essential — a clay pot on its side, a coconut shell half or a flat piece of slate propped against the glass gives the female a spawning and refuge site. Dense planting (Java fern, Anubias, Vallisneria, floating plants for shade) creates the visual breaks that keep a pair from constant confrontation with each other and with other tank inhabitants.
Filtration: A sponge filter or low-flow hang-on-back unit works well. These fish come from near-still water, and a strong current stresses them and disrupts fry. Keep surface agitation gentle and provide good biological filtration rather than high turnover.
What water parameters do Goldeneye Dwarf Cichlids need?
| Parameter | Target range |
|---|---|
| Temperature | 24–28 °C (75–82 °F) |
| pH | 6.0–7.5 |
| Hardness | 1–10 dGH |
Stability matters as much as specific numbers. A tank sitting at a steady pH 7.0 and 25 °C (77 °F) produces healthier fish than one that swings between 6.5 and 7.5 across a week. Cycle the aquarium fully before adding fish, keep up with weekly partial water changes of 25–30%, and test parameters regularly, especially in a new setup. Softer, slightly acidic water (pH 6.5–7.0, 1–6 dGH) is strongly preferred for conditioning breeding pairs and improving fry hatch rates.
What do Goldeneye Dwarf Cichlids eat?
Nannacara anomala is an omnivore with a natural diet of small invertebrates, insect larvae, worms and organic detritus found in leaf litter. In the aquarium they readily accept a varied menu:
- Staple: High-quality small cichlid pellets or micro-pellets as the protein base.
- Frozen/live foods: Bloodworm, white worm, daphnia and brine shrimp significantly boost colour and trigger conditioning for breeding. Offer these 3–4 times a week.
- Vegetable matter: Blanched spinach or spirulina-based flake rounds out the diet and supports gut health.
Feed once or twice daily in small amounts the fish finish within two minutes. Leftover food in a bottom-heavy cichlid tank degrades water quality quickly. Because they forage low in the water column, sinking or slowly-sinking foods reach them more reliably than surface flakes.
How does the Goldeneye Dwarf Cichlid behave, and what fish can it live with?
The Goldeneye Dwarf Cichlid carries a semi-aggressive temperament that is highly context-dependent. Outside spawning, a pair or a single male coexists peacefully with most small, non-threatening community fish. During spawning and fry-guarding, the female (primarily) and male defend their territory assertively, and tankmates that wander too close receive clear warnings and sometimes pursuit.
Suitable community companions in a 75 L (20 gal) or larger tank include:
- Small schooling tetras — ember, neon, rummy-nose (fast enough to evade and occupy the mid-water zone).
- Corydoras catfish — peaceful bottom-dwellers; avoid having them compete for the same cave spaces.
- Otocinclus — algae-grazing, unobtrusive and unlikely to provoke territorial reactions.
- Peaceful rasboras — harlequin or chili rasboras occupy mid-water and add movement without tension.
Avoid keeping two males together unless the tank is very large with strong visual barriers — male-to-male confrontations escalate quickly. Similarly, avoid pairing with nippy species (tiger barbs, serpae tetras) or boisterous cichlids that will disrupt the pair’s territory.
For a full compatibility breakdown see Goldeneye Dwarf Cichlid tank mates.
How do you tell male and female Goldeneye Dwarf Cichlids apart?
Sexual dimorphism in Nannacara anomala is pronounced and visible even to inexperienced eyes:
Males grow to around 8 cm (3 in), display the species’ famous iridescent flanks — scales that shift between green, gold, and blue depending on the light angle — and develop slightly extended dorsal and anal fins as they mature. Their colour intensifies dramatically when competing for territory or courting.
Females are significantly smaller at 4–5 cm (1.5–2 in) and cryptically coloured in brown with a defined dark lateral stripe running from the eye to the caudal base. This stripe, not particularly noticeable in a resting female, intensifies into a bold, high-contrast pattern when she is actively guarding eggs or fry — an unmistakable visual cue to both intruders and the observant fishkeeper.
Young fish can be difficult to sex before 8–10 weeks of age. At around three months, size differences and the male’s developing iridescence make identification straightforward.
How do Goldeneye Dwarf Cichlids breed?
This species is rated easy to breed and is among the most approachable dwarf cichlids for first-time cichlid spawners. A compatible pair kept in well-conditioned water will often spawn without deliberate intervention.
Conditioning: Feed both fish heavily on live and frozen foods for 1–2 weeks before expecting spawning activity. Slightly softer, warmer water (pH 6.5–7.0, 26–28 °C / 79–82 °F) helps trigger the event.
Spawning site: The female deposits 50–200 adhesive eggs on a cleaned flat surface — the underside of a slate tile, the interior of a cave or a broad plant leaf. She cleans the site obsessively before laying.
Parental roles: The female takes the dominant parental role, fanning the eggs, removing unfertilised ones and guarding the clutch fiercely. The male defends the broader territory. Eggs hatch in approximately 48–60 hours at 26 °C (79 °F); fry become free-swimming after a further 4–5 days as they absorb their yolk sacs.
Raising fry: Newly free-swimming fry accept infusoria or commercial liquid fry food initially, graduating to baby brine shrimp nauplii within a week. The female continues to guard and corral the school actively for 2–4 weeks. Removing tankmates or using a dedicated breeding tank increases fry survival substantially.
What diseases commonly affect the Goldeneye Dwarf Cichlid?
Nannacara anomala is a hardy species, but like all cichlids it is susceptible to conditions that arise from poor water quality or stress:
- Ich (white spot disease): Fine white grains on the body and fins, caused by Ichthyophthirius multifiliis. Warm, stable water and stress-free conditions are the best prevention; new fish should always be quarantined before introduction.
- Hole-in-the-head (HITH): Small pits or erosions around the head and lateral line, linked to poor nutrition, activated carbon overuse and degraded water quality. A varied, nutrient-rich diet and consistent water changes are the primary preventive measures.
- Bacterial infections / fin rot: Ragged fin edges, often secondary to injury from territorial disputes or mechanical damage. The fix starts with clean water and removal of the stressor, not medication.
- Internal parasites: Occasionally seen in wild-caught stock; captive-bred fish are generally clear but should still be quarantined.
Health note: symptom identification and medication dosing are beyond the scope of a care profile. If your fish show signs of disease, confirm the diagnosis against a reputable aquatic veterinary source before treating.
Prevention comes down to consistent maintenance: a cycled tank, weekly water changes, a varied diet, adequate space, and quarantining all new arrivals for a minimum of two weeks before they enter the display tank.
How long do Goldeneye Dwarf Cichlids live?
A well-kept Nannacara anomala lives 3–5 years. The species is not particularly long-lived compared to larger cichlids, but within that window you get the full arc of its personality: the male’s colour peak, courtship, spawning and the female’s extraordinary parental behaviour. Fish purchased as juveniles may have most of that potential ahead of them; fish bought as adults are closer to their mid-life. Either way, stable water, a nutritious diet and a stress-managed setup will keep them thriving through their full natural span.
Frequently asked questions
Can I keep Goldeneye Dwarf Cichlids with small tetras?
Yes, provided the tank has sight-breaks and plenty of cover. Outside of spawning periods the fish are tolerant of small, fast schoolers like ember tetras or neon tetras. When a female is guarding eggs or fry, she will aggressively defend the immediate spawning area, so a tank of 80 L or more gives other fish enough distance to stay safe.
Do they need a special substrate or cave to breed?
A flat slate tile or small clay cave placed on the substrate is usually all they need. The female does the bulk of parental guarding and will clean and defend the site obsessively. Soft, slightly acidic water (pH 6.5–7.0) reliably triggers spawning and improves fry survival.
What you need to keep a goldeneye dwarf cichlid
The baseline is a heated, filtered 60 L+ tank: a reliable heater to hold 24–28 °C (75–82 °F), a gentle filter that won't batter a goldeneye dwarf cichlid in the current, and a tight-fitting lid. Cycle the tank fully before adding any fish.
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