Skip to main content

Should I buy it?

Electric Blue Acara

Andinoacara pulcher var.

Also known as: andinoacara hybrid line

Calmer cichlid for a 200 L planted community. Far more community-safe than an oscar or a jack dempsey, but still eats anything that fits in its mouth.

Electric Blue Acara tank mates · 160L tank size hub

VerdictCAUTION

semi-aggressive · intermediate care

Sources & confidencehigh · partially verified · beginner: caution

Checked against several solid care sources that mostly agree. Numbers here are a careful starting point. Your tap water, tank size, and habits decide the rest. How we evaluate.

Min tank
150L
Adult
~18cm
Group
1
Temp
2428°C

Best for: Community tanks of 200 L or more that need a calmer blue centrepiece cichlid.

Avoid if: You only have a small tank, or you keep tiny tetras small enough to be eaten.

Common mistakeStocking electric blue acaras with nano tetras under about 4 cm is how keepers invent disappearances as the acara matures. Adult gape treats small fish as prey even if juveniles coexisted for months. Choose robust companions from day one — or keep a species-focused setup.

Top things that go wrong

  1. Grows large or needs a very big footprint. Electric Blue Acara is often sold at sizes that hide adult length (~18cm) and a published minimum near **150L**. Shop tanks are not adult housing.
  2. Mouth gap vs tiny tank mates. May eat tank mates small enough to fit the adult mouth — plan adult sizes, not shop sizes.
  3. Shrimp & snails. Not shrimp-safe — adults, fry, or both get eaten.

What most shops don't tell you

  • 1.Myth: electric blue acaras stay community-safe with neon-sized fish if raised together. Reality: adults reach serious mouth size and eat small tank mates — plan robust companions and ~150L+, not a nano tetra daycare Plan the husbandry before the shop impulse buy.
  • 2.Predation risk scales with gape, night feeding, and crowding. 'they grew up together' is a schedule, not a law.
  • 3.Adding bite-sized tetras or livebearers "until the predator grows". The first lost fish lands months earlier than the plan said.
  • 4.More peaceful than most cichlids but will eat small fish. Requires a medium-to-large tank. Can be territorial when spawning.

About this species

Electric blue acaras are 15 to 18 cm South American cichlids with iridescent blue scales. Calmer than most cichlids, so they fit a 200 L community with similarly sized companions.

Similar fish
Same category, closest min tank.
Related fish
Same care level & temperament, similar volume band.
Commonly paired with Electric Blue Acara
Other species that list this fish as a safe or "best with" direction.

Plan grid

Key limits are above. Here: pH band, swim level, bioload, and activity.

pH
6.5 – 7.5
Bioload
high
Relative to similar community fish
Activity
medium
Flow medium · O₂ medium

Swim zones

Care snapshot

Quick compare before you buy. Not a score of how “good” the fish is.

Planning trait radar for this speciesBeginner easePeacefulnessCommunity fitSmall-tank fitHardinessEnergy
  • Beginner ease32
  • Peacefulness30
  • Community fit12
  • Small-tank fit97
  • Hardiness54
  • Energy54

Numbers are deterministic planning indices from Fishori fields — not a scientific score of your individual fish.

Adult size
15 to 18 cm. A bulky cichlid; bioload and footprint matter.
Tank size
200 L for one adult. 300 L for a pair.

Example setups

Starting points only. Run the pair checker for every fish you add.

Not recommended as a random community add-on

Avoid “one of everything” baskets — Electric Blue Acara belongs in a plan built around territory, line-of-sight breaks, and matched water chemistry.

Compatibility

Tank mates for Electric Blue Acara

No unconditional “safe” tank mates are listed for Electric Blue Acara — every listed candidate is a conditional pair check, not a green light. Conditional (CAUTION — read the pair page before buying): Bristlenose Pleco, Guppy, Harlequin Rasbora, Jack Dempsey, Neon Tetra. Every name links to a live pair check — the lists are a shortlist, not a stocking plan.

VerdictGOOD

Usually safer

Open a pair page with this fish as the starting point.

None listed. Use the pair checker before mixing.

VerdictCAUTION

Needs planning

VerdictRISKY

Usually avoid

Do-not-stock combinations on conservative hobby rules.

None listed. Use the pair checker before mixing.

If Electric Blue Acara is the wrong pick, try instead
Safer directions when this fish does not fit your tank or experience.

No safe-mate list on this record yet. Use the fish index to find species with similar care, then run a pair check before you buy.

Behaviour and temperament

In the tank

Electric blue acaras are semi-aggressive cichlids that stay calmer with space and broken sight lines. They are not nano community fish at adulthood. Stress and predation risk rise as they grow in short tanks stocked with bite-sized dither Plan the husbandry before the shop impulse buy.

What sets them off

  • Crowding and limited territory
  • Similar-looking fish in the same tank
  • Spawning, for any breeding pair

Fin nipping: Not a habitual fin-nipper; stressed or crowded individuals can still test fins.

Predation: May eat tank mates small enough to fit the adult mouth — plan adult sizes, not shop sizes.

Territory: Holds a patch (cave, corner, or surface). Break sight lines so neighbours can pass.

Planted tanks: goodeasy plant ideas

In the glass: typical and warning signs

Typical behaviour
  • An acara patrols mid-to-bottom water among wood and plants in a roomy tank.
  • Mild territorial display at spawning is normal ownership with an exit plan.
Stress signals
  • Missing nano tetras overnight usually mean predation, not a filter mystery.
  • Chronic digging and chasing in a short tank means footprint failed.
Aggression signals
  • Mouth-size predation on small fish is ownership math at adult size.
  • They can coexist with robust similarly sized fish when space is honest.
When to separate or rethink
  • Remove bite-sized fish long before adult length arrives.
  • Upgrade volume before stacking another cichlid 'for company.'

Fish behaviour can vary between individuals and tank setups. Always observe new fish closely after introduction.

Water, food, and grouping

Water, feeding, inverts

Hardness

soft

Diet

omnivore

Electric blue acaras are omnivore cichlids that take pellets and frozen foods as they grow toward adult size. Tiny community flake alone underfeeds a fish heading for roughly 18 cm. Feed by appetite in a 150L+ tank with cover, and stop expecting nano tetras to remain roommates as the mouth catches up.

Shrimp & snails

Not shrimp-safe — adults, fry, or both get eaten.

Grouping

Electric Blue Acara is fine singly or as a researched pair — check behaviour before doubling up.

Before you buy checklist
Tick mentally in the shop. Every box should be true before you pay.
  • Hold 24 to 28 °C steadily on a real thermometer, not the dial on the heater.
  • Aim for pH 6.5 to 7.5 and a hardness you can re-test in two weeks. A one-time strip in the shop car park is not a water test.
  • Footprint: short wide tanks and tall narrow tanks fish differently for the same volume. Match the tank shape to the swim pattern, not just the litre count.
  • Tank volume meets or exceeds 150L published minimum for adults.
  • Heater can hold 24–28°C without cooking cooler-water tank mates.
  • No tank mates small enough to fit the adult mouth gap for this species.

Explore and stocking hubs

Tank-mates hub, matching guides, category peers, and litre stocking lists around this species’ minimum tank.

Plan with tools

Check mates as pairs first, then add this fish in the tank builder for the full stocking.

Filtration & heating

A 150L minimum tank needs a filter rated for at least 600L/hr turnover and a heater to hold 2428°C reliably.

Plant suggestions

Electric Blue Acara does well in planted tanks. Plants compatible with 2428°C and pH 6.57.5:

Sources & evidence

Research: partially verified · Confidence: high · 3 linked source(s). We do not invent citations.

How Fishori evaluates compatibility (same logic as pair and tank tools).

  • Seriously Fish. Andinoacara pulcher

    Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).

  • FishBase. Andinoacara pulcher

    Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.

  • Wikipedia. Andinoacara pulcher

    Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.

Evidence notes

  • The Seriously Fish profile for the binomial in this record was successfully reached as the primary aquarium reference.
  • FishBase contributes natural-range size and habitat context. Translate those numbers through your heater, your water report, and your tank footprint before stocking.
  • Wikipedia is only cited if the article URL returned OK. Use it for orientation, not as the only care sheet for an import.
  • All compatibility text reflects typical hobby experience and the Fishori model. Individual fish, shop stress, and the order tank mates are added in can still defy a single-paragraph label.

Last reviewed · Curated by Fishori · cross-checked against 3 sources

Spotted an error? hello@fishori.com

Featured compatibility checks

Curated pair pages for Electric Blue Acara. Each opens a full verdict — not just a list label.

Common questions about Electric Blue Acara

How big do Electric Blue Acara get?
15 to 18 cm. A bulky cichlid; bioload and footprint matter.
What size tank does Electric Blue Acara need?
200 L for one adult. 300 L for a pair.
Are Electric Blue Acara aggressive?
Electric blue acaras are semi-aggressive cichlids that stay calmer with space and broken sight lines. They are not nano community fish at adulthood. Stress and predation risk rise as they grow in short tanks stocked with bite-sized dither Plan the husbandry before the shop impulse buy.
What is the most common mistake with Electric Blue Acara?
Stocking electric blue acaras with nano tetras under about 4 cm is how keepers invent disappearances as the acara matures. Adult gape treats small fish as prey even if juveniles coexisted for months. Choose robust companions from day one — or keep a species-focused setup.
What fish can live with Electric Blue Acara?
This profile currently has no curated unconditional safe-mates shortlist for Electric Blue Acara. Other species may still return GOOD in the pair checker, so check the exact pair rather than treating this shortlist as exhaustive. Bristlenose Pleco, Guppy, Harlequin Rasbora, Jack Dempsey are conditional (CAUTION): workable only with the specific conditions on each pair page. Run the pair checker for your exact water and tank size before stocking.