What Is A Dantum Angelfish – ? The Majestic Hybrid Every Aquarist
A Dantum angelfish is a unique interspecific hybrid created by crossing the wild Pterophyllum altum with domestic Pterophyllum scalare. They possess the impressive height of an altum while retaining the relative hardiness of common angelfish varieties.
If you have spent any time in the freshwater aquarium hobby, you know that the angelfish is the undisputed “King of the Aquarium.”
Throughout my ten years of maintaining South American biotope tanks, I have seen dozens of color morphs, from marbles to platinums.
However, few fish have sparked as much curiosity and debate as the Dantum.
When I first encountered a group of these fish in a local shop, I was immediately struck by their incredible vertical profile and regal presence.
In this guide, we will dive deep into what is a dantum angelfish, exploring its genetic history, unique care requirements, and why it has become a must-have for intermediate keepers.
What is a Dantum Angelfish?
To understand the Dantum, we must first look at its family tree, which is a fascinating example of interspecific hybridization.
Unlike most common aquarium angelfish, which are variants of Pterophyllum scalare, the Dantum is a cross-breed.
It was originally developed by the Danziger Innovations farm in Israel, combining the DNA of the wild Pterophyllum altum and the domestic Pterophyllum scalare.
This hybridization was intended to capture the “best of both worlds.”
The goal was to create a fish with the massive, majestic fins of the Altum but without the extreme sensitivity that makes wild Altums so difficult to keep in home aquariums.
Pro Tip: Many hobbyists mistake “Dantum” for a natural species found in the wild. In my experience, it is helpful to remember that “Dantum” is actually a brand name (Dan + Altum) representing this specific high-quality hybrid line.
The Genetic Bridge
The wild Pterophyllum altum is famous for its steep forehead notch and incredible height, sometimes reaching over 12 inches tall.
However, they are notoriously difficult to acclimate to tap water and often succumb to stress during shipping.
By crossing them with Pterophyllum scalare, breeders have produced a fish that is much more resilient.
This genetic bridge allows hobbyists who aren’t ready for the “expert-only” requirements of wild fish to enjoy a very similar aesthetic.
Identifying Features of the Dantum Angelfish
One of the most common questions I get is how to tell a Dantum apart from a high-fin silver angelfish.
The most striking feature is the vertical barring, which is usually dark, crisp, and extends through the eye and across the body.
Dantums also possess a distinct “notch” or indentation above the snout, a trait inherited directly from their Altum parentage.
Their body shape is more elongated vertically than a standard scalare, giving them a diamond-like silhouette.
When they are fully grown, their dorsal and anal fins create a massive vertical span that requires a very deep aquarium.
Coloration and Patterns
Most Dantum angelfish display a silvery-green or “honey” iridescent base color.
As they mature, you might notice a slight reddish or brownish hue on the back, often referred to as “red-neck” traits in Altum circles.
The fins often show delicate spotting or striations that shimmer under high-quality LED lighting.
Essential Water Parameters for Dantum Success
While the Dantum is hardier than a wild Altum, it is still more sensitive than your average pet-store marble angelfish.
In my years of keeping them, I’ve noticed they thrive best when you pay close attention to the chemical composition of the water.
They prefer soft, acidic conditions that mimic the natural habitat of their ancestors.
To keep their immune systems strong, you should aim for a low carbonate hardness (KH).
High KH levels can lead to pH swings or mineral deposits that may irritate their delicate slime coats.
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 78°F – 84°F (25°C – 29°C) | Prefer slightly warmer water than standard fish. |
| pH Level | 6.0 – 7.0 | Keep it stable; avoid rapid fluctuations. |
| Water Hardness (GH) | 3 – 8 dGH | Soft water is essential for long-term health. |
| Specific Conductivity | 150 – 300 µS/cm | Lower conductivity mimics rain-fed rivers. |
The Role of Humic Substances
I highly recommend the use of humic substances in a Dantum tank.
Adding tannic acid through the use of driftwood, almond leaves, or peat filtration can work wonders.
These organic compounds act as a natural mild antibiotic and help lower the pH safely.
Not only does the slight tint in the water look beautiful, but it also makes the fish feel much more secure.
Tank Setup and Design Requirements
Because of their extreme height, the minimum tank size for a Dantum is different than for other fish.
A standard 29-gallon tank is often too shallow for an adult Dantum.
Their fins can actually become stunted or bent if the water column isn’t deep enough.
I always suggest a tank that is at least 20 to 24 inches tall to allow them to swim comfortably.
Decor and Filtration
In my experience, Dantum angelfish love tall, vertical structures.
Large pieces of Manzanita wood or tall Amazon Sword plants provide the perfect “forest” for them to glide through.
Avoid sharp rocks or plastic plants that could tear their expansive fins.
Regarding filtration, they prefer a gentle flow.
Angelfish are not strong swimmers in heavy currents, and a high-flow powerhead will likely stress them out.
A large sponge filter or a canister filter with a spray bar directed at the glass is usually the best choice.
Common Mistake: Many keepers forget that angelfish are ambush predators. If you keep them in a “sterile” tank with no hiding spots, they may become skittish and lose their vibrant colors due to stress.
Diet and Nutrition for Vibrant Growth
Feeding a Dantum angelfish is one of the most rewarding parts of ownership because they are enthusiastic eaters.
To maintain their impressive size and the clarity of their vertical barring, a varied diet is mandatory.
They are omnivores, but they lean heavily toward protein-rich foods.
I have found that a base of high-quality flakes or pellets works well, but you should supplement with frozen or live foods.
Bloodworms, brine shrimp, and mysis shrimp are excellent choices.
If you want to see them truly thrive, try offering live blackworms once a week.
Preventing Nutritional Deficiencies
One issue common in high-bodied hybrids like the Dantum is a sensitivity to poor-quality food.
Low-grade fillers can lead to digestive issues or bloating.
Always look for foods where the first few ingredients are whole proteins like “whole krill” or “herring” rather than “fish meal.”
Common Health Challenges and Disease Prevention
Dantum angelfish are generally robust, but they are not invincible.
Because of their Altum heritage, they can be more susceptible to certain protozoan infections if water quality slips.
One of the most serious conditions to watch for is Hexamitiasis, also known as Hole-in-the-Head disease.
This condition is often linked to poor water conditions and a lack of minerals in the diet.
If you notice your Dantum developing small pits around its head or trailing white, stringy feces, you must act quickly.
You can learn more about how to treat hole in the head to ensure your fish recovers fully.
Quarantine Protocol
Whenever I bring a new Dantum into my gallery, I always use a strict 4-week quarantine period.
These fish are often shipped from overseas, and the stress of travel can suppress their immune systems.
Monitoring them in a separate tank allows you to ensure they are eating well and free of parasites before adding them to your main display.
Compatibility and Tank Mates
When considering what is a dantum angelfish in terms of personality, they are typical cichlids.
They are generally peaceful when young but can become territorial as they pair off to breed.
However, they are not nearly as aggressive as some other cichlid species.
Good tank mates include:
- Corydoras catfish (for cleaning the substrate)
- Larger tetras like Rummy Nose or Bleeding Heart tetras
- Bristlenose Plecos
- Peaceful dwarf cichlids like Apistogramma
Avoid very small fish like Neon Tetras, as an adult Dantum will eventually view them as a snack.
Also, avoid fin-nipping species like Tiger Barbs, which will find the Dantum’s long fins an irresistible target.
Frequently Asked Questions
Are Dantum angelfish harder to keep than regular angelfish?
They are slightly more demanding because they require very clean water and a deeper tank. However, they are significantly easier to care for than pure wild Altums.
How big do Dantum angelfish get?
An adult Dantum can reach a body length of about 6 inches, but their total height (including fins) can exceed 10 to 12 inches.
Can Dantum angelfish live in tap water?
Yes, they can acclimate to most tap water, provided it is dechlorinated and doesn’t have an extremely high pH (above 8.0). For the best results, keeping the pH between 6.5 and 7.2 is ideal.
Why is my Dantum angelfish losing its dark bars?
Angelfish often “fade” their bars based on their mood or stress levels. If the bars are pale, check your ammonia levels or see if a tank mate is bullying them.
Are Dantum angelfish fertile?
Yes, despite being hybrids, Dantum angelfish are fertile and can be bred in the home aquarium, though raising the fry can be more challenging than with standard scalare.
Conclusion
Understanding what is a dantum angelfish opens up a world of majestic beauty for the dedicated hobbyist.
By blending the awe-inspiring stature of the Altum with the adaptability of the common angelfish, breeders have given us a truly spectacular specimen.
As long as you provide them with a tall tank, clean water enriched with tannins, and a high-quality diet, they will serve as the stunning centerpiece of your aquarium for many years.
In my experience, the extra effort required to maintain their soft-water environment is a small price to pay for the grace they bring to a room.
If you are ready to move beyond the basic varieties, the Dantum is waiting to take its throne in your tank.