Should I buy it?
Jaguar cichlid
Parachromis managuensis
Also known as: jag
An aggressive predator that grows to 35 cm. Eats everything smaller and fights everything the same size. A specialist fish for dedicated large setups only.
Jaguar cichlid tank mates · 300L tank size hub
aggressive · advanced care
Sources & confidencehigh · partially verified · beginner: not recommended
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.
Best for: Species-only or matched-pair setups in tanks of 600L or more with substantial territory rockwork.
Avoid if: Any community tank, any setup under 400L, or any fish under 20 cm.
Common mistakeParking a juvenile jaguar in a 150L 'aggressive community' is how keepers invent a fish that eventually kills everything else. Adults reach roughly 35 cm and do not share politely. Plan a huge footprint or do not buy the cute juvenile.
Top things that go wrong
- Grows large or needs a very big footprint. Jaguar cichlid is often sold at sizes that hide adult length (~35cm) and a published minimum near **500L**. Shop tanks are not adult housing.
- Fin-nipping risk in typical community layouts. Will nip long fins or slow fish when the school is too small, bored, or kept in a short tank.
- Mouth gap vs tiny tank mates. May eat tank mates small enough to fit the adult mouth — plan adult sizes, not shop sizes.
More issue cards below, after species context.
Additional planning warnings
Specialist husbandry
Jaguar cichlid is fine singly or as a researched pair — check behaviour before doubling up.
Shrimp & snails
Not shrimp-safe — adults, fry, or both get eaten.
What most shops don't tell you
- 1.Myth: juvenile jaguar cichlids settle into mixed aggressive communities as they grow up with tank mates. Reality: adults are large, highly aggressive predators that need ~500L-class systems — cohabitation stories end when size and temperament catch up 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.Purchased in the 'cute 8 cm' phase with no 500 L or more adult plan in writing.
- 4.Housed in mixed South American 'community' tanks. The outcome is always predictable and cruel.
- 5.House alone or in purpose-built, very large, same-species systems with a backup rehome or rescue plan. Never mix with small fish, ever.
- 6.Advanced species — research stable parameters before buying.
About this species
Jaguar cichlids are 30 to 40 cm Central American predators with heavy jaw development. The long-term home for an adult is a custom large system with heavy filtration, secure rockwork, and a feeding plan. Not a community cichlid for a 200 L or smaller mixed tank.
- Green Terror300L min · same fish family
- Oscar300L min · same group, similar adult size
- Severum250L min · same fish family
- African Cichlid200L min · same fish family
- Convict cichlid200L min · same fish family
- Discus200L min · same fish family
- Firemouth Cichlid200L min · same fish family
- Jack Dempsey200L min · same fish family
No close matches listed.
No reverse lookups listed yet.
Plan grid
Key limits are above. Here: pH band, swim level, bioload, and activity.
Swim zones
Care snapshot
Quick compare before you buy. Not a score of how “good” the fish is.
- Beginner ease6
- Peacefulness0
- Community fit0
- Small-tank fit38
- Hardiness36
- Energy86
Numbers are deterministic planning indices from Fishori fields — not a scientific score of your individual fish.
Example setups
Starting points only. Run the pair checker for every fish you add.
Avoid “one of everything” baskets — Jaguar cichlid belongs in a plan built around territory, line-of-sight breaks, and matched water chemistry.
Compatibility
Tank mates for Jaguar cichlid
Usually safer (engine GOOD): Oscar. Conditional (CAUTION — read the pair page before buying): Bala / silver shark, Tinfoil barb. Avoid (RISKY): Boesemani Rainbowfish, Chili Rasbora, Corydoras Catfish, Dwarf Gourami, Ember Tetra. Every name links to a live pair check — the lists are a shortlist, not a stocking plan.
Usually safer
Open a pair page with this fish as the starting point.
Needs planning
Read the blocking rule on each pair page before experimenting.
Usually avoid
Do-not-stock combinations on conservative hobby rules.
Compare with
Run a real pair check: Jaguar cichlid + Oscar
- Try Oscar — open the pair check.
Behaviour and temperament
Jaguar cichlids are aggressive predators by size and temperament. They are not community fish at adulthood. Stress and lethal aggression are inevitable in home footprints that cannot hold the adult or give tank mates anywhere to exist Plan the husbandry before the shop impulse buy.
What sets them off
- Small groups or boredom
- Long-finned or slow tank mates
- Bare tanks without structure
Fin nipping: Will nip long fins or slow fish when the school is too small, bored, or kept in a short tank.
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: good — easy plant ideas
In the glass: typical and warning signs
- A large jaguar patrols and claims serious territory in a huge tank.
- Heavy waste and appetite at adult size are normal — filtration must match.
- Constant aggression in a few-hundred-litre tank means the footprint failed early.
- Missing tank mates overnight mean predation or fatal injury, not mystery disease alone.
- Adults kill other fish regardless of 'grew up together' timelines.
- They do not mellow into tetra communities — the chart was always wrong.
- Do not buy the juvenile unless the adult system already exists.
- Rehome all incompatible stock long before adult length — waiting guarantees losses.
Fish behaviour can vary between individuals and tank setups. Always observe new fish closely after introduction.
Water, food, and grouping
Hardness
medium-hard
Diet
carnivore
Jaguar cichlids are large carnivores that need serious meaty foods and filtration matched to a 35 cm adult. A community pellet pinch is not a feeding plan. Feed appropriate predator diets only if you already have 500L-class volume — not a growing-out tub you hope to upgrade later.
Shrimp & snails
Not shrimp-safe — adults, fry, or both get eaten.
Jaguar cichlid is fine singly or as a researched pair — check behaviour before doubling up.
- Hold 24 to 30 °C steadily on a real thermometer, not the dial on the heater.
- Aim for pH 7 to 8.5 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 500L published minimum for adults.
- Heater can hold 24–30°C without cooking cooler-water tank mates.
- No known fin-nippers paired with long-finned fish unless you accept documented risk.
- No tank mates small enough to fit the adult mouth gap for this species.
- Filter maturity / stable parameters before adding sensitive stock.
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 500L minimum tank needs a filter rated for at least 2000L/hr turnover and a heater to hold 24–30°C reliably.
Plant suggestions
Jaguar cichlid does well in planted tanks. Plants compatible with 24–30°C and pH 7–8.5:
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. Parachromis managuensis
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Parachromis managuensis
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Parachromis managuensis
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.
Common questions about Jaguar cichlid
- How big do Jaguar cichlid get?
- Jaguar cichlid adults run about 30–40 cm. In home tanks they usually land near 35 cm — plan space and filtration for that, not the juvenile in the shop bag.
- What size tank does Jaguar cichlid need?
- 500L is the planning floor for adult swimming space and bioload. A 600L+ tank is the more comfortable long-term footprint. Length and depth matter as much as raw litres for active or territorial fish.
- Are Jaguar cichlid aggressive?
- Jaguar cichlids are aggressive predators by size and temperament. They are not community fish at adulthood. Stress and lethal aggression are inevitable in home footprints that cannot hold the adult or give tank mates anywhere to exist Plan the husbandry before the shop impulse buy.
- What is the most common mistake with Jaguar cichlid?
- Parking a juvenile jaguar in a 150L 'aggressive community' is how keepers invent a fish that eventually kills everything else. Adults reach roughly 35 cm and do not share politely. Plan a huge footprint or do not buy the cute juvenile.
- What fish can live with Jaguar cichlid?
- The Jaguar cichlid profile lists Oscar among its safer pairings (engine-checked GOOD). Bala / silver shark, Tinfoil barb are conditional (CAUTION): workable only with the specific conditions on each pair page. Avoid Boesemani Rainbowfish, Chili Rasbora, Corydoras Catfish, Dwarf Gourami (RISKY). Run the pair checker for your exact water and tank size before stocking.