Photo: Piotr Kuczynski (CC BY-SA 3.0) — via Wikimedia Commons
Striped Raphael Catfish (Platydoras armatulus)
An armored, sound-making bottom dweller that can outlive your dog — just don't house it with anything small enough to swallow.
Will it live with a Striped Raphael Catfish?
We compare each fish against your striped raphael catfish on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- Banjo Catfish✅ CompatiblePeaceful · 15 cm · Medium care · 20–26 °C (68–79 °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.
- Bearded Corydoras✅ CompatiblePeaceful · 10 cm · Medium 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.
- Keep Bearded Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Bristlenose Pleco✅ CompatiblePeaceful · 12 cm · Easy care · 23–30 °C (73–86 °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.
- Clown Pleco✅ CompatiblePeaceful · 9 cm · Medium care · 24–28 °C (75–82 °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.
- Giant Kuhli Loach✅ CompatiblePeaceful · 12 cm · Easy care · 24–30 °C (75–86 °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.
- Leopard Frog Pleco✅ CompatiblePeaceful · 9 cm · Medium care · 25–30 °C (77–86 °F)
- Compatible on the things that matter: shared water near 25–28 °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.
- Marbled Hoplo✅ CompatiblePeaceful · 14 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.
- Medusa Pleco✅ CompatiblePeaceful · 12 cm · Medium care · 26–30 °C (79–86 °F)
- Compatible on the things that matter: shared water near 26–28 °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.
- Porthole Catfish✅ CompatiblePeaceful · 10 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.
- Rubber Lip Pleco✅ CompatiblePeaceful · 12 cm · Easy care · 20–26 °C (68–79 °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.
- Snowball Pleco✅ CompatiblePeaceful · 16 cm · Medium care · 24–30 °C (75–86 °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.
- Spotted Rubbernose Pleco✅ CompatiblePeaceful · 12 cm · Medium care · 20–26 °C (68–79 °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.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Spotted Talking Catfish✅ CompatiblePeaceful · 15 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.
- Striped Eel Loach✅ CompatiblePeaceful · 12 cm · Medium care · 24–28 °C (75–82 °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.
- Upside-down Catfish✅ CompatiblePeaceful · 10 cm · Easy 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.
- Weather Loach✅ CompatiblePeaceful · 25 cm · Easy care · 5–24 °C (41–75 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–24 °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.
- Zebra Pleco✅ CompatiblePeaceful · 10 cm · Hard care · 26–30 °C (79–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 26–28 °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.
- Altifrons Geophagus⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 24–28 °C (75–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 190 L tank is below the ~378 L this pairing really wants — crowding raises aggression.
- Keep Altifrons Geophagus in a shoal of 6+ or it gets stressed and nippy.
- Angelicus Synodontis⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 23–27 °C (73–81 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 190 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Blood Parrot Cichlid⚠️ With cautionSemi-aggressive · 20 cm · Medium care · 24–28 °C (75–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Discus⚠️ With cautionPeaceful · 20 cm · Hard care · 28–31 °C (82–88 °F)
- Striped Raphael Catfish and Discus are close in size, but the semi-aggressive one tends to dominate — add discus in a group to spread the pressure.
- Your 190 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Discus in a shoal of 6+ or it gets stressed and nippy.
- Electric Blue Acara⚠️ With cautionSemi-aggressive · 16 cm · Medium care · 22–28 °C (72–82 °F)
- Striped Raphael Catfish and Electric Blue Acara can both be territorial; doable with space and dense planting, but watch for chasing.
- Electric Blue Hap⚠️ With cautionSemi-aggressive · 20 cm · Medium care · 24–28 °C (75–82 °F)
- Different pH ranges (6.5–7.6 vs 7.8–8.5); doable if you sit in the shared band, but not ideal long-term.
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 190 L tank is below the ~250 L this pairing really wants — crowding raises aggression.
- Emperor Peacock Cichlid⚠️ With cautionSemi-aggressive · 16 cm · Medium care · 24–28 °C (75–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 190 L tank is below the ~210 L this pairing really wants — crowding raises aggression.
- Fire Blue Empress Cichlid⚠️ With cautionSemi-aggressive · 18 cm · Medium care · 24–28 °C (75–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 190 L tank is below the ~400 L this pairing really wants — crowding raises aggression.
- Galaxy Pleco⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 22–26 °C (72–79 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Goldie Pleco⚠️ With cautionSemi-aggressive · 20 cm · Medium care · 24–29 °C (75–84 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Green Severum⚠️ With cautionSemi-aggressive · 20 cm · Medium care · 23–29 °C (73–84 °F)
- Striped Raphael Catfish and Green Severum can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 190 L tank is below the ~208 L this pairing really wants — crowding raises aggression.
- Guyana Flag Cichlid⚠️ With cautionSemi-aggressive · 18 cm · Medium care · 24–30 °C (75–86 °F)
- Striped Raphael Catfish and Guyana Flag Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 190 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Honeycomb Pleco⚠️ With cautionSemi-aggressive · 21 cm · Medium care · 24–29 °C (75–84 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 190 L tank is below the ~280 L this pairing really wants — crowding raises aggression.
- Platinum Acara⚠️ With cautionSemi-aggressive · 20 cm · Medium care · 23–28 °C (73–82 °F)
- Striped Raphael Catfish and Platinum Acara can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 190 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Spanner Barb⚠️ With cautionSemi-aggressive · 18 cm · Medium care · 23–29 °C (73–84 °F)
- Striped Raphael Catfish and Spanner Barb can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 190 L tank is below the ~208 L this pairing really wants — crowding raises aggression.
- Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
- Tiger Loach⚠️ With cautionSemi-aggressive · 20 cm · Medium care · 23–27 °C (73–81 °F)
- Striped Raphael Catfish and Tiger Loach can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 190 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Alligator Gar⛔ Not recommendedAggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
- Striped Raphael Catfish and Alligator Gar are both territorial and at least one is outright aggressive — expect serious fighting.
- Alligator Gar may bully the smaller Striped Raphael Catfish, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 190 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: Striped Raphael Catfish and Clown Knifefish will hold territory and clash.
- Clown Knifefish may bully the smaller Striped Raphael Catfish, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 190 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Mbu Puffer⛔ Not recommendedAggressive · 67 cm · Hard care · 24–28 °C (75–82 °F)
- Two assertive fish, one genuinely aggressive: Striped Raphael Catfish and Mbu Puffer will hold territory and clash.
- Mbu Puffer may bully the smaller Striped Raphael Catfish, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 190 L tank is below the ~757 L this pairing really wants — crowding raises aggression.
- Ocellaris Peacock Bass⛔ Not recommendedAggressive · 70 cm · Hard care · 24–30 °C (75–86 °F)
- Two assertive fish, one genuinely aggressive: Striped Raphael Catfish and Ocellaris Peacock Bass will hold territory and clash.
- Ocellaris Peacock Bass may bully the smaller Striped Raphael Catfish, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 190 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Redtail Catfish⛔ Not recommendedAggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
- Striped Raphael Catfish and Redtail Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
- Redtail Catfish may bully the smaller Striped Raphael Catfish, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 190 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)
- Striped Raphael Catfish and Spotted Gar are both territorial and at least one is outright aggressive — expect serious fighting.
- Spotted Gar may bully the smaller Striped Raphael Catfish, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 190 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)
- Striped Raphael Catfish and Wels Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
- Wels Catfish may bully the smaller Striped Raphael Catfish, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 190 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: Striped Raphael Catfish and Wolf Cichlid will hold territory and clash.
- Wolf Cichlid may bully the smaller Striped Raphael Catfish, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 190 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.
Striped Raphael Catfish care specs
- Care level
- Medium
- Breeding
- Very Hard
- Max size
- 20 cm (7.9 in)
- Min tank size
- 190 L (50.2 gal)
- Temperature
- 24–28 °C (75–82 °F)
- pH
- 6.5–7.6
- Hardness
- 5–16 dGH
- Lifespan
- 10–15 years
- Diet
- Omnivore
- Swim level
- Bottom
- Group size
- Best alone or in a pair
- Family
- Doradidae
- Origin
- South America — Amazon and Orinoco river basins (Brazil, Venezuela, Colombia, Peru)
What is a Striped Raphael Catfish?
The striped Raphael catfish (Platydoras armatulus) is a heavily armored, nocturnal bottom dweller from the Amazon and Orinoco river basins of South America. It belongs to the family Doradidae — the “thorny catfish” — and earns that name through rows of sharp bony scutes running the length of both flanks. Add a pair of pectoral fins with spines that can lock rigidly outward, and you have one of the few aquarium fish that can genuinely injure a net, a predator, or an unwary hand reaching into the tank.
The coloration is unmistakable: a near-black or dark chocolate-brown body with a bold cream-white lateral stripe from snout to tail, and a pale cream underside. This pattern gave rise to the common nickname “humbug catfish.” Adults reach 20 cm (8 in) — larger than many hobbyists expect — and have a documented lifespan of 10 to 15 years, which means buying a Raphael catfish is closer to adopting a pet than stocking a seasonal display tank.
Two other traits set this fish apart: it is one of a handful of fish that makes an audible sound, and it will happily spend sixteen hours a day invisible inside a cave. Both qualities make it a fascinating long-term resident for the prepared aquarist.
Where do Striped Raphael Catfish come from?
Platydoras armatulus is native to the Amazon and Orinoco river basins, with a distribution spanning Brazil, Venezuela, Colombia and Peru. In the wild it inhabits the benthic zone of slow to moderately flowing rivers, flooded forest floors and leaf-littered margins — environments with soft, tannin-stained water, dense root tangles and abundant debris to hide beneath.
The water in these Amazonian habitats is warm (24–28 °C / 75–82 °F), soft to moderately hard, and mildly acidic to near-neutral. Substrate is typically fine sand or silt layered with decomposing leaf matter. Understanding this origin explains everything about what a Raphael catfish needs: warmth, subdued light, stable water chemistry, fine or smooth substrate, and an abundance of dark, tight hiding places.
Most fish in the hobby are wild-caught, as captive breeding is essentially undocumented. This makes responsible sourcing worth considering — look for reputable importers with healthy, parasite-free stock.
What size tank does a Striped Raphael Catfish need?
The honest minimum is 190 litres (50 gallons). This is not a fish that stays small — 20 cm (8 in) is a substantial catfish, and its nocturnal foraging range covers the entire tank floor. A tank footprint of at least 120 cm × 45 cm (48 in × 18 in) gives it room to move and allows you to arrange meaningful territories of caves and driftwood without the tank becoming a cramped obstacle course.
Filtration should be robust. Raphael catfish are messy, protein-heavy eaters and produce significant waste. A canister filter or high-flow hang-on-back rated well above the tank volume will keep nitrates in check. Weekly water changes of 25–30% are the standard maintenance routine.
Substrate matters: fine sand is strongly preferred. The Raphael catfish sifts substrate looking for buried food, and coarse gravel can abrade its underside and interfere with its barbels over years of daily use. Smooth river sand or fine play sand are both good choices.
Hiding spots are not optional — they are the core of the setup. PVC pipe sections, smooth ceramic caves, overturned clay pots and dense tangles of driftwood all work. A Raphael catfish that has no cave to claim is a stressed Raphael catfish, and stressed fish are sick fish. Provide at least one hiding spot per catfish, sized so the fish can turn around inside.
What water parameters do Striped Raphael Catfish need?
- Temperature: 24–28 °C (75–82 °F) — match the warm, equatorial rivers of the Amazon basin.
- pH: 6.5–7.6 — slightly acidic to just past neutral; this species tolerates a reasonable range as long as it is stable.
- Hardness: 5–16 dGH — soft to moderately hard.
Stability is more important than landing on any specific number within these ranges. Sudden swings in temperature or pH are far more damaging than a parameter that sits at the softer or harder end of the acceptable window. Cycle the tank fully before introduction, and use a reliable test kit to track ammonia, nitrite, and nitrate regularly. Ammonia and nitrite must stay at zero; nitrate below 20 ppm is the target.
Dim lighting suits this species well. Strong overhead lighting is not harmful, but the fish will spend more time visible — and more time active — in a tank with subdued light or floating plants to break surface glare.
What do Striped Raphael Catfish eat?
Raphael catfish are omnivores with a strong preference for meaty foods. In the wild they root through substrate for invertebrates, worms, insect larvae and plant matter. In the aquarium the feeding strategy is equally flexible, but a few practical rules apply.
Sinking foods only. This fish rarely ventures above the bottom third of the tank, and it is almost entirely nocturnal — anything that floats at the surface or dissolves before it sinks will be ignored. Use sinking pellets (carnivore or high-protein omnivore formulas), sinking wafers and frozen or thawed meaty foods: bloodworm, earthworm, shrimp, and mysis shrimp are all taken eagerly.
Feed after lights-out. Drop food 15–20 minutes after the tank light goes off. The catfish will emerge from its cave and actively forage. Feeding in daylight often means the food disappears before the catfish finds it — eaten by tank-mates — or it sits and fouls the water.
Occasional vegetable matter (blanched zucchini, spinach, or spirulina wafers) rounds out the diet. Avoid over-reliance on very fatty foods; variety is the key to long-term health across a 10–15 year lifespan.
Are Striped Raphael Catfish aggressive — and what fish can live with them?
The Raphael catfish is semi-aggressive, with the aggression largely determined by size. Its golden rule: anything that fits in its mouth is a meal, and it will exercise that rule overnight without hesitation. Neon tetras, small rasboras, dwarf shrimp and nano fish are not tank-mates — they are a midnight snack.
With fish of comparable size, however, the Raphael catfish is a relaxed, non-territorial cohabitant. Large, robust community fish are the right companions: medium to large tetras, cichlids that share its temperature and pH range, peaceful larger barbs, and similarly-sized catfish from other families all work well. Avoid keeping it with very aggressive cichlids that might bully it during the day when it is hiding, and avoid extremely docile nano fish for obvious reasons.
Raphael catfish can be kept singly (min_group_size is 1) and often fare well as solitary bottom dwellers. Two can coexist in a sufficiently large tank with multiple cave options, though they are not schooling fish and do not require company of their own kind.
For a full compatibility breakdown, see Striped Raphael Catfish tank mates.
How do you tell male and female Striped Raphael Catfish apart?
Honestly: with great difficulty. Sexual dimorphism in Platydoras armatulus is minimal and not reliably visible without close comparison of multiple mature individuals side by side. Females are thought to be slightly broader and deeper-bodied when gravid or mature — a fuller appearance through the belly — but this is a subtle difference at best and not consistent enough to use as a reliable sexing method in a home aquarium.
There are no external color differences, no fin modifications between sexes, and no reliable behavioral cues under normal aquarium conditions. For most hobbyists, sexing this species is effectively not possible without hands-on examination by an experienced breeder or veterinarian.
How do Striped Raphael Catfish breed?
Breeding Platydoras armatulus in captivity is rated very hard — and that rating is almost an understatement. Documented successful spawnings in home aquaria are extremely rare, and the reproductive biology of this species in captivity is not well understood.
In the wild, doradids are thought to undertake seasonal spawning migrations tied to Amazonian flood cycles and water-temperature shifts that are difficult to replicate in a closed aquarium system. There are no established protocols for conditioning, spawning triggers, or raising fry for this species under hobby conditions.
If you are drawn to breeding catfish, other doradids or closely related species with more documented breeding records are better candidates. For the Raphael catfish, plan to keep it as a long-lived display and personality fish rather than a breeding project. Its 10–15 year lifespan means it will be a fixture in your fishroom for a long time regardless.
What are common Striped Raphael Catfish diseases?
This is a generally hardy fish when kept in correct water conditions, but a few health issues are worth knowing.
Ich (white spot disease) is the most common threat in the broader aquarium hobby and affects doradids too. Watch for small white granules on the body and fins. Prevention is straightforward: maintain stable temperature, avoid sudden drops (common during water changes in winter), and quarantine all new fish before adding them to the main tank.
Internal parasites are a concern with wild-caught fish, which make up most of the trade. A quarantine period of 3–4 weeks in a separate tank, with observation for thin body condition or abnormal feces, is good practice with any new arrival.
Skin and barbel erosion can develop on coarse substrate over time. Fine sand substrate is the best prevention — it is the same material the fish rests on and sifts through every day of its life.
Poor water quality is the root cause of most secondary infections in catfish. A heavily-built, scaleless-underside fish like a Raphael catfish can absorb ammonia and nitrite through direct skin contact with substrate. Keep the tank cycled and water changes regular.
Health note: disease diagnosis and medication are beyond the scope of a care profile. For a sick fish, confirm the diagnosis against a reputable veterinary or fish-health source before medicating — and note that scaleless and armored catfish can be sensitive to some common treatments at standard doses.
How long do Striped Raphael Catfish live?
A well-maintained striped Raphael catfish lives 10 to 15 years — an unusually long lifespan for an aquarium fish, and one that many first-time owners underestimate when they buy what looks like a modest juvenile at the fish store.
Those 10–15 years are achievable with consistent care: stable, appropriately warm and clean water, a fine-sand substrate, reliable hiding places, and sinking food delivered after dark. Poor water quality, incorrect substrate and chronically bad feeding schedules will shorten that window. Get those fundamentals right, and a Raphael catfish purchased today could still be croaking away in your tank well into the next decade.
Frequently asked questions
Will a striped Raphael catfish eat my other fish?
It will eat any tank-mate small enough to fit in its mouth — neon tetras, small rasboras and dwarf shrimp are all fair game once the lights go out. Keep it with fish of similar size (8 cm or larger), and the community stays peaceful. Its armored body and locking fin spines also make it very hard for larger predators to swallow, so it holds its own well.
Why does my Raphael catfish make a croaking sound?
It is not your imagination. Raphael catfish — and most doradids — stridulate by grinding their pectoral-fin spines against the shoulder socket, producing an audible croak or grunt. You will hear it most often when the fish is netted or startled. It is a defense mechanism, not a sign of distress during normal tank life.
What you need to keep a striped raphael catfish
The baseline is a heated, filtered 190 L+ tank: a reliable heater to hold 24–28 °C (75–82 °F), a gentle filter that won't batter a striped raphael catfish in the current, and a tight-fitting lid. Cycle the tank fully before adding any fish.
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