Should I buy it?
Adolfoi cory
Corydoras adolfoi
Also known as: adolfo's cory, adolfoi corydoras
A striking orange-and-black cory with a vivid dorsal saddle. Needs soft water to show full colour and a school of six on fine sand.
Adolfoi cory tank mates · 80L tank size hub
peaceful · intermediate care
Sources & confidencehigh · partially verified · beginner: good
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: Soft-water planted community tanks 80L or more with sand substrate and a school of six.
Avoid if: Hard alkaline tap water or sharp coarse substrate.
Common mistakeParking adolfoi cories in hard alkaline tap water because the community is ‘easy tropical’ is how keepers wash out the orange-and-black pattern and invite stress infections. They want soft, acidic-leaning water and a real school of six — not a hard livebearer kit with three mixed cory species.
Top things that go wrong
- Group welfare — not a solo display fish. Plan at least **6** together for normal behaviour; smaller groups often mean stress, colour loss, or nipping depending on species.
- Shrimp & snails. Cherry shrimp and other dwarfs can coexist with peaceful small fish; baby shrimp are food for almost anything that finds them.
What most shops don't tell you
- 1.Myth: adolfoi cories are hardy tropical cleanup crew for any tap-water community. Reality: they need soft water, sand, and a real same-species group — hard alkaline kits fade the colour and the fish long before the algae problem is solved.
- 2.Bought in pairs to save money. Undergrouped adolfois stress and lose colour fast.
- 3.Kept in hard cold water. The black cap fades to grey within weeks.
- 4.Sand, frequent water changes, and a varied high-quality food rotation beat 'generic flake on the glass' for long-term snout and barbel health.
About this species
Adolfoi corys carry a bold black cap from snout to dorsal fin on a white body. Most shop fish are still wild-caught from blackwater Brazil, so source responsibly. Needs soft warm oxygenated water and a school of six to show natural play behaviour.
- Glass Catfish80L min · same group, comparable tank size
- Peppered Corydoras80L min · same group, comparable tank size
- Bronze corydoras100L min · same group, similar adult size
- Corydoras Catfish60L min · same group, similar adult size
- Julii Corydoras60L min · same group, similar adult size
- Panda Corydoras60L min · same group, similar adult size
- Salt and pepper cory / dwarf cory60L min · same group, similar adult size
- Sterba's Corydoras100L min · same group, similar adult size
- Bamboo Shrimpalso intermediate peaceful, similar tank size
- Black ruby barbalso intermediate peaceful, similar tank size
- Bolivian Ramalso intermediate peaceful, similar tank size
- Brown / hockey-stick pencilfishalso intermediate peaceful, similar tank size
- Cardinal Tetraalso intermediate peaceful, similar tank size
- Celebes Rainbowfishalso intermediate peaceful, similar tank size
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 ease56
- Peacefulness90
- Community fit76
- Small-tank fit100
- Hardiness54
- Energy24
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.
Rough 90L+ layout: one calm centrepiece, 8–12 small tetras/rasboras, 6–8 corydoras-type bottom fish — verify every name in the pair checker before buying.
Safer directions include: Ember Tetra, Neon Tetra.
Prioritise 6+ of Adolfoi cory in 80L+ with filtration sized for messy feeding — add only mates that already pass pair checks with this species.
Compatibility
Tank mates for Adolfoi cory
Usually safer (engine GOOD): Ember Tetra, Neon Tetra. Conditional (CAUTION — read the pair page before buying): Angelfish, Bala / silver shark, Chili Rasbora, Corydoras Catfish, Dwarf pencilfish. Avoid (RISKY): African Cichlid, Guppy, Oscar. 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: Adolfoi cory + Ember Tetra
- Try Ember Tetra — open the pair check.
- Try Neon Tetra — open the pair check.
Behaviour and temperament
Adolfoi cories are peaceful bottom schoolers that spend the day working sand and leaf litter. They ignore midwater fish and fail when kept as a trio on gravel in hard water. Stress shows as frantic glass swimming or resting clamped when the school is too small or the substrate is sharp.
What sets them off
- Sudden crowding
- Poor water quality
Fin nipping: Not a habitual fin-nipper; stressed or crowded individuals can still test fins.
Predation: Not a predator toward similarly sized community fish; fry and dwarf shrimp are still fair game for most species.
Territory: Not strongly territorial, but still needs room so its working space does not overlap the next fish.
Planted tanks: excellent — easy plant ideas
In the glass: typical and warning signs
- A group of six or more works soft sand together after lights soften.
- Barbels stay clean and busy on sand; gravel shreds them over months.
- Washed-out orange in hard alkaline water is chemistry before brand of food.
- Frantic glass pacing in a trio usually means more of their own kind first.
- None toward tank mates; competition is over sinking wafers inside the group.
- They lose to predatory cichlids and get outcompeted by frantic midwater feeders.
- Move them out of hard-water livebearer plans that will not be rewritten.
- Increase group size before adding another bottom species to ‘keep them company.’
Fish behaviour can vary between individuals and tank setups. Always observe new fish closely after introduction.
Water, food, and grouping
Hardness
soft
Diet
omnivore
Adolfoi cories are bottom omnivores that need sinking wafers and frozen foods after the midwater rush. Leftover flake on the glass is not a feeding plan. Drop food to soft sand, confirm the slowest fish eats, and keep a group so competition at one wafer does not leave weaker cories empty.
Shrimp & snails
Cherry shrimp and other dwarfs can coexist with peaceful small fish; baby shrimp are food for almost anything that finds them.
Schooling species — buy 6+ together. Smaller groups stress and lose colour.
- Hold 22 to 26 °C steadily on a real thermometer, not the dial on the heater.
- Aim for pH 5.5 to 6.5 and a hardness you can re-test in two weeks. A one-time strip in the shop car park is not a water test.
- Schooling species. Buy 6 or more from the same tank on the same day before adding any centrepiece fish.
- Tank volume meets or exceeds 80L published minimum for adults.
- You can stock at least 6 individuals (group welfare).
- Heater can hold 22–26°C without cooking cooler-water tank mates.
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 80L minimum tank needs a filter rated for at least 320L/hr turnover and a heater to hold 22–26°C reliably.
Plant suggestions
Adolfoi cory does well in planted tanks. Plants compatible with 22–26°C and pH 5.5–6.5:
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. Corydoras adolfoi
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Corydoras adolfoi
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Corydoras adolfoi
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 Adolfoi cory
- How big do Adolfoi cory get?
- Adolfoi cory adults reach about 5 cm. Shop fish look smaller; stock for the adult length.
- What size tank does Adolfoi cory need?
- 80L is the planning floor for adult swimming space and bioload. A 98L+ tank is the more comfortable long-term footprint. Length and depth matter as much as raw litres for active or territorial fish.
- Are Adolfoi cory aggressive?
- Adolfoi cories are peaceful bottom schoolers that spend the day working sand and leaf litter. They ignore midwater fish and fail when kept as a trio on gravel in hard water. Stress shows as frantic glass swimming or resting clamped when the school is too small or the substrate is sharp.
- Do Adolfoi cory need to be kept in a group?
- Schooling species — buy 6+ together. Smaller groups stress and lose colour.
- What is the most common mistake with Adolfoi cory?
- Parking adolfoi cories in hard alkaline tap water because the community is ‘easy tropical’ is how keepers wash out the orange-and-black pattern and invite stress infections. They want soft, acidic-leaning water and a real school of six — not a hard livebearer kit with three mixed cory species.
- What fish can live with Adolfoi cory?
- The Adolfoi cory profile lists Ember Tetra, Neon Tetra among its safer pairings (engine-checked GOOD). Angelfish, Bala / silver shark, Chili Rasbora, Corydoras Catfish are conditional (CAUTION): workable only with the specific conditions on each pair page. Avoid African Cichlid, Guppy, Oscar (RISKY). Run the pair checker for your exact water and tank size before stocking.