Pterophyllum scalare jaguar l.f

Pterophyllum scalare jaguar l.f at a glance

Pterophyllum scalare jaguar l.f is a domestic colour form of the freshwater angelfish, Pterophyllum scalare, the tall, disc-shaped South American cichlid that FishBase calls one of the most popular of all tropical aquarium fish. Each purchase supplies one young angelfish at around 3–3.5 cm. That small fish grows into an adult of roughly 15 cm long and 20–25 cm from fin tip to fin tip, so the most important question before ordering is whether you can give it a mature, tall aquarium and suitable company for the long term.

Angelfish are sociable fish that do best as a compatible pair or a planned small group rather than alone. Like other cichlids they defend space when they pair up or spawn. Given stable, well-filtered water, sensible tank mates and a varied diet, they are confident, rewarding fish that move calmly between open water and the cover of tall plants and upright wood.

What the name tells you

"Jaguar l.f" is a trade label for a domestic colour and finnage form, not a separate species. Underneath the name this is the same fish as silver, marble, koi, gold, black and platinum angelfish, all of which are sold as Pterophyllum scalare, the accepted name listed in Eschmeyer's Catalog of Fishes. Its care therefore follows the species rather than the colour: water, space, diet and behaviour are the same. It is not the Altum angelfish, Pterophyllum altum, which is a distinct species with its own requirements.

The photographs show a pale, silvery-white angelfish with long, trailing fins, a dark bar through the eye and a dark bar across the body. Colour-form names such as jaguar are trade names rather than scientific categories, and no colour form is known to be hardier or calmer than another, so choose on welfare fit rather than on colour alone. Gallery images have been digitally enhanced to improve image quality. Natural colour, pattern, size and maturity can vary between live animals.

Planning around one young fish

Because one purchase is one fish, think about the whole group before you order. A single juvenile living alone is not a good long-term plan, because OATA notes that angelfish kept singly may become stressed. The simplest route for a new setup is to start a small group of juveniles together, so they grow up side by side, and to decide in advance what you will do if a pair forms and starts to claim space. If you already keep angelfish, add a newcomer of similar size where you can and watch closely for the first few weeks, because established adults form hierarchies and may defend their space against a smaller arrival. You can compare the other forms of the same species in our angelfish collection.

Sex is guaranteed only when the selected option explicitly states male or female. This Pterophyllum scalare jaguar l.f listing has no sex-guaranteed option. Juvenile angelfish are also very hard to sex by eye, so a true pair is something that forms over time rather than something that can be picked out at this size.

Before you order

• Your aquarium is fully cycled, with zero ammonia and nitrite confirmed by your own tests.
• It is tall enough for an adult angelfish, or that larger tank will be ready before the fish outgrows its first home.
• You know whether you are keeping a pair or a small group, and where a fish would go if the group falls out.
• Any existing fish are too large to be eaten, are not fin-nippers and share the same water range.
• You have a thermometer and a test kit, plus a quarantine tank if other fish are already established.

Growth and adult size

Angelfish grow upwards as well as forwards, which is why an aquarium that looks spacious for a juvenile can become cramped for the adult. Published figures for Pterophyllum scalare differ because they measure different things:

• Total length: the commonly quoted maximum, which FishBase also carries, is about 15 cm from snout to tail tip.
• Standard length: Seriously Fish plans its aquarium advice around 150 mm SL.
• Wild field record: FishBase's current field maximum for males and unsexed fish is 10.5 cm total length. That is a record from wild specimens, not a ceiling to expect from aquarium stock.
• Height: the extended dorsal and anal fins can make an adult roughly 20–25 cm tall.

For planning, use the larger figures: an adult about 15 cm long that may stand up to around 25 cm tall. Individual fish and domestic forms vary, and a long-finned fish needs clear space around decor so those fins are not torn as it turns.

How fast a juvenile grows depends on food, temperature, water quality and space, so there is no reliable timetable. What matters is having the adult-sized aquarium ready from the start rather than upgrading after the fish has outgrown a short or shallow tank. A young fish of 3–3.5 cm tells you very little about the tank it will need as an adult.

Tank size, height and layout

How much space

Three reputable references point in the same direction but set the bar at different heights:

A quick worked example shows why the numbers matter. A tank measuring 100 × 40 × 50 cm holds 200 litres at full depth, and a little less once substrate and decor are in. OATA's stocking figure of about 40 litres per adult angelfish means five adults would use that whole volume before any other fish are added, which is why we treat a tank of this size as a home for a pair and some companions rather than for a full adult group.

We plan around the more generous figures because angelfish need height and turning room at the same time. A tall but narrow tank does not solve the problem: an adult needs horizontal space to swim and, once it pairs, a territory it can hold without being pressed against its neighbours. If you keep a group rather than a pair, add space in proportion and have a second suitable tank or a realistic rehoming route in mind before any squabbling starts.

Layout and decor

Wild angelfish live in swamps and flooded ground in the Amazon basin where aquatic and riverside vegetation is dense and the water is clear or silty. In the aquarium that translates into tall plants and vertical structure with open water in front. Seriously Fish recommends a well-planted tank with tall, leafy plants such as Amazon swords. Upright wood and plants break up sight lines, giving a subordinate fish somewhere to retreat, while an open central area lets adults turn without dragging their fins.

• Choose smooth decor and avoid sharp edges that could split long fins.
• Use fine gravel or sand. OATA notes that many American cichlids will dig or sift the substrate when feeding or breeding, so bed plants and wood in firmly.
• Leave broad leaves, slate or other smooth upright surfaces in place, because angelfish spawn on vertical surfaces and a settled pair will choose one.
• Fit a secure lid and cover any hazardous intake. If a fish does jump, return it to aquarium water straight away using wet hands or a soft, wet net, then check its breathing and balance.

Filtration, flow and heating

A well set up, well maintained filter is essential for every aquarium fish, as the RSPCA's aquarium welfare advice makes clear: fish release ammonia, and a mature biological filter converts it to nitrite and then to the less harmful nitrate. Seriously Fish suggests a turnover of four to five times the tank volume an hour, which for a tank of about 200 litres means a filter rated at roughly 800–1,000 litres per hour. Angelfish prefer gentle water flow, so spread the return along the tank rather than aiming it across open water. Gentle does not mean stagnant; the surface should still move enough for good oxygen exchange.

To heat a tank of that size in a room of around 20 °C, Seriously Fish estimates roughly 200–275 W. Check the temperature with a separate thermometer rather than relying on the heater dial alone. Our guide to setting up and maturing a first tropical tank explains how to cycle the filter before any fish are added.

Water chemistry and maintenance

Aquarium angelfish are far removed from their wild ancestors and adapt to a sensible range of conditions, but they do poorly when conditions keep changing. Our routine target sits where FishBase's ranges for the species and UK trade guidance for American cichlids overlap:

For context, FishBase records an environmental range of 24–30 °C, pH 6.0–8.0 and 5–13 dH for the species, and Seriously Fish gives 24–30 °C, pH 6.0–7.4 and 0–15 dGH. OATA's care sheet for American cichlids gives 22–27 °C, pH 6.5–8.0 and 4–12 dGH for the group as a whole. The upper temperatures in those ranges are limits the fish can cope with, not an everyday setting, so keep to the routine band and hold it steady.

Match the water the fish has been living in, acclimatise it gradually and aim for stability. Rather than chasing a particular pH with chemicals, or copying a fixed mix of reverse-osmosis and tap water, measure GH, KH and pH first and work out whether your tap water already sits inside the routine band. Our guide to aquarium water parameters explains what each test means, and the water parameter matcher lets you compare your own readings with the values above.

A weekly routine that works

• Test ammonia, nitrite and nitrate at least once a week, and more often while the tank is new or after adding fish.
• Change about 25% of the water at least once every week, siphoning waste from the substrate as you go. OATA strongly recommends this as a starting routine; let your test results show whether the tank needs more.
• Treat replacement water with a tap-water conditioner to remove chlorine and chloramine before it goes into the aquarium.
• Rinse filter media lightly in the tank water you have just removed, never under the tap, so the beneficial bacteria survive.
• Check the filter for blockages and keep the flow steady.

OATA points out that American cichlids can be stressed by even the smallest amounts of ammonia, so consistent routine care matters more than hitting any single number. A larger volume of water also helps, because temperature and water quality swing less in a big tank than in a small one.

Feeding

In the wild, Pterophyllum scalare is an omnivore that feeds mostly on small crustaceans and other aquatic invertebrates. Aquarium angelfish readily accept dried foods and relish live or frozen foods, so a varied diet is easy to provide.

• Staple: a good-quality complete cichlid pellet, granule or flake, sized so the fish can swallow it easily. Small granules or crumbled flake suit a young fish; move to larger pieces as it grows.
• Variety: frozen or freeze-dried brine shrimp, daphnia and bloodworm, which OATA lists as foods smaller American cichlids appreciate.
• Treats are extras: bloodworm and brine shrimp are welcome supplements, but a fish fed only on them misses out on a balanced diet.

OATA's general guidance for American cichlids is to feed only what the fish can eat within a few minutes, once a day, and to take care not to overfeed, because uneaten food breaks down and releases toxic waste into the water. Watch every fish at feeding time. In a pair or group the boldest fish can take most of the food, so check that quieter fish are eating too, and siphon out anything left after a few minutes.

Feed composition genuinely matters. A controlled feeding study on this species by Kasiri and colleagues (2012) found that different feed types changed growth and reproductive performance. That supports offering variety rather than a single food, although it does not set a household feeding schedule. When conditioning a pair for spawning, Seriously Fish recommends live foods such as bloodworm and brine shrimp.

Keep an eye on body shape over the weeks. A fish that stays thin while others fill out may be losing out at feeding time, and a fish that refuses food for more than a day or two is a reason to test the water before anything else.

Arrival and the first weeks

Tropical Fish Co hand-packs every order. Fish are bagged in pure oxygen and placed in an insulated poly box, with a heat pack when the weather calls for it, then carried by a tracked, licensed live-animal courier. You receive the tracking number and your confirmed delivery date by email. Please read the full delivery and Live Arrival Guarantee policy before you order.

When the parcel arrives

1. Make sure someone is at the delivery address to receive the parcel; live fish cannot be left unattended.
2. Start a continuous unboxing video with the parcel still sealed and the outer box visible, and keep filming in one take until the fish can be seen inside its sealed bag.
3. Inspect the fish on the same day it arrives.
4. Float the sealed bag in the aquarium for 20–30 minutes so the temperature evens out.
5. Release the fish into the tank and never pour the bag water into your aquarium.
6. If anything has gone wrong, contact us the same day with your order number and the unboxing video; WhatsApp is quickest. We will then arrange a replacement or refund.

The first few weeks

Before the fish arrives, confirm with your own tests that ammonia and nitrite are zero, because a calendar alone cannot prove a tank is cycled. After release, look for steady swimming, regular breathing, clear eyes, open fins and interest in food. Feed lightly at first and remove anything that is not eaten.

If you already keep fish, a separate, mature quarantine tank protects them. The veterinary guidance summarised in our angelfish care guide recommends at least 30 days in quarantine with separate equipment. Add new fish gradually so the filter bacteria can keep pace: OATA warns that stocking too quickly can cause new tank syndrome, where ammonia and nitrite rise faster than the filter can deal with them.

Health and breeding

Signs of a healthy angelfish

A healthy angelfish swims steadily, breathes at an even rate, holds its fins open and feeds with interest. OATA suggests watching for changes in:

• swimming: hanging at the surface, sitting on the bottom or moving erratically;
• colour: noticeably darker or paler than normal;
• temperament: more hiding than usual or a change in aggression;
• breathing: gill covers moving faster or slower than usual;
• appearance: white spots, fluffy growths, damaged fins or missing scales;
• condition and appetite: a change in body weight or a loss of interest in food.

If something changes

1. Test ammonia, nitrite, nitrate and temperature straight away, and pH where relevant.
2. Treat any detectable ammonia or nitrite as urgent, but avoid sudden swings in pH, hardness or temperature.
3. Photograph the signs, note when they started and speak to a specialist aquatic retailer or a fish vet.
4. Use only treatments that are lawful in the UK and labelled for the fish and the system, following the label or a vet's direction.

Behaviour alone cannot diagnose a disease, and there is no safe one-size-fits-all remedy such as raising the temperature sharply for white spot. The RSPCA's fish health advice likewise puts water quality first. Our complete freshwater angelfish care guide covers health, quarantine and jumping incidents in more depth.

Breeding behaviour

Angelfish lay their eggs on vertical surfaces such as slate, broad-leaved plants or even the aquarium glass. A bonded pair needs little encouragement beyond good condition and some live food. Both parents usually guard the eggs and then the fry, although adults sometimes eat their young, so keep a breeding pair well fed. Seriously Fish notes that fry can take newly hatched brine shrimp once they have absorbed their yolk sacs, usually after about two days, before moving on to commercial fry food.

Pair choice matters. Research on the species supports serial monogamy under captive conditions, so a pair can split and re-form, and "mates for life" is too strong a promise. Breeding also sharpens territorial defence, which is why a dedicated breeding tank is a calmer option than a busy community.

Telling males from females

Angelfish are notoriously difficult to sex. Males have a smaller, more pointed genital papilla, but it is usually visible only around spawning. Behaviour can hint at sex, since males tend to be more territorial in breeding condition, but forehead shape, fin angle and size are not reliable ways to sex young fish.

Behaviour and daily life

Settled angelfish move calmly between open water and the cover of tall plants and wood, and they are usually quick to notice feeding time. Many keepers find their angelfish come to the front glass as someone approaches. That is best read as learned food anticipation rather than a sign the fish needs more food, so keep portions measured and use the moment to check each fish over.

FishBase notes that the species' colour is deeper in clear water. In practice, a fish in good condition in clean, stable water shows strong contrast and carries its fins open, while a fish that hides constantly, clamps its fins or stays pale for days is telling you something has changed and the water should be tested first.

What changes as it matures

As young angelfish approach maturity, a pair may form and start to claim part of the tank, often near a broad leaf or upright surface where they might later spawn. Expect some chasing at this stage, and watch whether it settles into occasional displays or turns into persistent harassment of one fish.

Long fins are part of the appeal of this form, and keeping them intact is mostly about the environment: smooth decor, gentle flow, calm companions and good water quality. Split or ragged fins are worth investigating promptly rather than accepting as normal wear.

Pairs, groups and social needs

Angelfish are social cichlids. OATA advises keeping them in a pair or group at minimum, and FishBase notes aquarium keeping in groups of five or more, with pairs moved to smaller tanks for breeding. Seriously Fish describes them as generally peaceful but inclined to squabble with their own kind, and recommends small groups. Taken together, a lone angelfish is a poor default, but more fish is not automatically better either.

Because each purchase is a single young fish, you decide how many to start with. Whatever the plan, watch for persistent chasing, one fish kept away from food, torn fins or constant hiding. Those are welfare problems to act on promptly rather than behaviour to wait out, and a spare tank or rehoming plan makes that far easier.

Choosing tank mates

Angelfish can live in a robust community, but they remain cichlids and grow large enough to swallow small fish. OATA suggests that calmer American cichlids such as angelfish can be mixed with larger shoaling species in a robust community aquarium, while Seriously Fish describes them as good community fish that may eat small fish such as tetras. Judge each proposed companion on five points:

Worth considering

• Calm, medium-sized shoaling fish that are too large to be eaten and share the same temperature and pH band.
• Corydoras and bristlenose plecos, which are often chosen because they use the lower levels of the tank. Check their adult size, the floor space and their water needs before assuming they fit.

Best avoided

• Very small tetras and other fish small enough to swallow once the angelfish is grown.
• Shrimp and fry, which are at real risk of being eaten.
• Persistent fin-nippers.
• Highly aggressive cichlids, which OATA advises keeping alone or with equally aggressive species.

No tank mate is guaranteed safe, because individual fish differ. Add companions carefully, watch the first weeks closely and keep a fallback plan in case a combination does not work.

Angelfish questions answered

How big does Pterophyllum scalare jaguar l.f grow?

Plan for an adult of about 15 cm in length and roughly 20–25 cm from the tip of the dorsal fin to the tip of the anal fin. Height matters as much as length, so choose the aquarium for that adult shape rather than for a young fish.

What size aquarium does a freshwater angelfish need?

OATA gives 120 litres as a general floor for a pair of smaller American cichlids and says angelfish need a sufficiently tall tank. For an adult pair of Pterophyllum scalare, Tropical Fish Co plans around 200 litres with a footprint of about 100 × 40 cm and roughly 50 cm of water height; a group needs more room.

How many angelfish should be kept together?

Angelfish are social, and OATA notes that a fish kept singly may become stressed, so plan a compatible pair or a small group. Seriously Fish suggests starting with about six juveniles if you hope a pair will form, but adults in a group need much more space and a plan for any fish that are chased.

Is Pterophyllum scalare jaguar l.f suitable for beginners?

Tropical Fish Co rates it as intermediate. It suits a prepared keeper with a fully cycled, tall aquarium, a reliable test kit and a clear plan for tank mates and group size.

What do angelfish eat?

Use a complete cichlid pellet, granule or flake sized for the fish, with frozen or freeze-dried brine shrimp, daphnia or bloodworm for variety. OATA's general advice for American cichlids is to feed what is eaten within a few minutes, once a day, and to remove leftovers.

What temperature and pH does Pterophyllum scalare need?

Our routine target is 24–27 °C, pH 6.5–8.0 and about 5–12 dGH, which sits inside FishBase's ranges for the species and OATA's general guidance for American cichlids. Match the water the fish arrives from and make any change gradually; stability matters more than a single ideal number.

Are angelfish aggressive, and do they nip fins?

They are generally peaceful but can squabble among themselves and defend territory more firmly when pairing or breeding. Their own long fins are vulnerable to persistent fin-nippers, so leave those out of the plan.

What fish can live with Pterophyllum scalare jaguar l.f?

Calm, appropriately sized fish with overlapping water needs, such as the larger shoaling species OATA suggests for a robust community. Very small fish such as tiny tetras, shrimp and fry may be eaten, and highly aggressive cichlids are unsuitable. No companion is guaranteed safe, so compare adult size, temperament and feeding speed first.

How does a Pterophyllum scalare arrive alive in the UK?

Tropical Fish Co hand-packs each order in a bag of pure oxygen inside an insulated poly box, with a heat pack when the weather calls for it, and sends it by tracked, licensed live-animal courier. Someone needs to be in to receive it. Film a continuous unboxing video from the sealed parcel to the fish still in its bag, float the bag for 20–30 minutes before releasing the fish, and report any problem the same day to keep the Live Arrival Guarantee.

Sources

These references support the care, identity and size information on this page.

• FishBase: Pterophyllum scalare species summary: identity, family, environmental ranges, maximum length and distribution.
• Eschmeyer's Catalog of Fishes: Pterophyllum scalare: accepted name, authorship and type locality.
• Seriously Fish: Pterophyllum scalare profile: aquarium size, water, diet, behaviour, sexing and breeding.
• OATA: How to look after American cichlids: UK trade-body guidance on water, maintenance, feeding and compatibility for the group.
• Kasiri, Farahi and Sudagar (2012), growth and reproductive performance by feed type in freshwater angelfish: controlled feeding study.
• RSPCA: fish environment: filtration, cycling and water quality.
• RSPCA: fish health and welfare: health signs and water-quality-first action.
• Tropical Fish Co freshwater angelfish care guide and delivery policy, both linked above: store planning figures, arrival steps and the Live Arrival Guarantee.