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Glass Catfish : Complete Care Guide

Glass Catfish Care Guide

Have you ever wanted to add a touch of enchantment to your aquarium? Look no further than the Glass Catfish, a mysterious and alluring creature that will leave you spellbound. With its see-through body and shimmering fins, this fish is unlike anything you’ve ever seen before.

Don’t let their delicate appearance fool you! The Glass Catfish, also known as the Ghost Catfish or Phantom Catfish, is a tough little fish that can thrive in a variety of water conditions and tank setups. With a lifespan of up to 10 years and a peaceful disposition, these fish make great additions to community tanks. Here we will explore the fascinating world of the Glass Catfish, from its origin and habitat to its care requirements and behavior. Sit back, relax, and let’s get started on our journey to discover the magic of the Glass Catfish.

Care DataDescription
Scientific NameKryptopterus vitreolus (Referred to as Kryptopterus bicirrhis prior to 2013)
Tank Size10 gallons (37.8 L) minimum, 30 gallons (113.6 L) or larger recommended
Water ParameterspH 6.0-7.5, temperature 74-82°F (24-28°C), moderate to low hardness
LightingLow to moderate, do not expose to direct sunlight
FiltrationCanister or hang-on-back filter, provide strong water movement
DietOmnivorous, accept a variety of live, frozen, and dried foods
Housing RequirementsProvide hiding spots and plenty of swimming space, use a tight-fitting lid to prevent jumping
Behavior and TemperamentPeaceful, best kept in groups of 6 or more
BreedingDifficult to breed in captivity, requires specific water conditions and adequate food
TankmatesCompatible with peaceful community fish, avoid keeping with larger or aggressive species

Appearance

The Glass Catfish is one of the most distinctive and recognizable fish in the aquarium hobby. Its body is almost entirely transparent, giving it a ghostly appearance that is sure to delight and enchant. This fish has a long, slender body that tapers towards the tail, and it has a rounded snout and small, almost nonexistent scales.

Glass Catfish side view


Lifespan

With proper care, the Glass Catfish can live for up to 10 years, making it a great long-term addition to any aquarium. This fish is hardy and adaptable, and it is known for its peaceful disposition and ability to thrive in community tanks.

Average Size and Growth Rate

The average size of the Glass Catfish is 3-4 inches (7.6-10.2 cm), but they can grow up to 5 inches (12.7 cm) in length. This fish has a slow growth rate, but with proper care and nutrition, it can grow to its full size over the course of several years.

Tank Size

The Glass Catfish is a relatively small fish, but it still requires a spacious tank. A minimum tank size of 10 gallons (37.8 L) is recommended, but larger tanks are always better. This fish is a social creature and it will do best in a community tank with other peaceful fish.

Water Parameters

The Glass Catfish is a hardy fish that can adapt to a variety of water conditions. However, it prefers water with a pH between 6.0 and 7.5 and a temperature between 72-82°F (22-28°C). This fish also prefers moderate water movement and a well-established filtration system.

Diet

The Glass Catfish is an omnivore, and it will eat a variety of foods including flakes, pellets, frozen foods, and live foods such as brine shrimp and worms. Provide a balanced and varied diet to ensure the health and longevity of your Glass Catfish. These fish are poor bottom feeders, so it’s important to provide food that doesn’t immediately sink to the bottom of the tank.

Food OptionBenefits
BloodwormsBloodworms are a high-protein treat that provide essential nutrients for the growth and health of the Glass Catfish.
Brine ShrimpBrine Shrimp are a high-fat food that can provide the Glass Catfish with energy and vitality.
KrillKrill are a rich source of omega-3 fatty acids, which are essential for maintaining the overall health and well-being of the Glass Catfish.
DaphniaDaphnia are a small, planktonic crustacean that provide essential vitamins and minerals for the Glass Catfish.
Tubifex WormsTubifex Worms are a nutritious treat that are high in protein and fat.
Mysis ShrimpMysis Shrimp are a small, shrimp-like creature that are high in protein and are an excellent food option for the Glass Catfish.
BlackwormsBlackworms are a high-protein food that are perfect for the growth of the Glass Catfish.
ArtemiaArtemia, also known as brine shrimp, are a high-protein, high-fat food that can provide the Glass Catfish with essential nutrients.
Mosquito LarvaeMosquito Larvae are a nutritious treat that are high in protein and fat.
Flakes & PelletsCommercial flakes and pellets are an easy to feed option formulated with all the essential nutrients for growth and health.

Housing Requirements

The Glass Catfish requires a well-established and spacious tank with plenty of hiding places and a well-filtered water source. It is important to include live or artificial plants, caves, and other hiding places in the tank to provide the fish with a sense of security.

School of Glass Catfish


Behavior and Temperament

The Glass Catfish is a peaceful and social fish that does well in community tanks. This fish is a shoaling species, and it is best kept in groups of at least 3-4 individuals. It is a non-aggressive fish that is known for its calm and graceful behavior. The Glass Catfish is an active fish that likes to swim in the middle to upper water column, and it will often swim in shoals with its tankmates.

Breeding

Glass Catfish are not commonly bred in captivity. There is very little information available on naturally triggering these fish to spawn. Some hobbyists have reported successful spawns, but it is best to assume these fish will not naturally breed in the aquarium setting. They are known to be egg-scatterers.

Tankmates

The Glass Catfish is a peaceful and social fish that does well in community tanks. It is best kept with other peaceful and non-aggressive species, such as tetras, rasboras, and peaceful corydoras. Avoid keeping Glass Catfish with larger, more aggressive fish that may bully or harm them.

TankmateDescription
Neon TetrasSmall, vibrant fish that add color to the tank and provide a peaceful presence
GuppiesActive, brightly colored fish that are easy to care for and provide a fun addition to the tank
CorydorasBottom-dwelling fish that help maintain a clean tank environment and provide companionship for Glass Catfish
Harlequin RasborasBright, active fish that are compatible with Glass Catfish and bring liveliness to the tank
OtocinclusSmall, peaceful catfish that help control algae growth and are great tank cleaners
Kuhli LoachUnique, eel-like fish that are compatible with Glass Catfish and add character to the tank
Amano ShrimpLarge, active shrimp that help keep the tank clean and provide an interesting addition to the tank
Ghost ShrimpTransparent, active shrimp that help control debris and provide an interesting addition to the tank
White CloudsSmall, peaceful fish that are compatible with Glass Catfish and bring an element of tranquility to the tank
Bamboo ShrimpUnique, filter-feeding shrimp that help maintain water quality and add interest to the tank
Rummynose TetrasVibrant, active fish that bring color and energy to the tank and are compatible with Glass Catfish
PlatiesHardy, livebearing fish that are easy to care for and bring a fun, active presence to the tank
Endler’s LivebearersSmall, brightly colored fish that are compatible with Glass Catfish and add an element of excitement to the tank
MolliesHardy, livebearing fish that bring a bright, active presence to the tank and are compatible with Glass Catfish
Cardinal TetrasVibrant, active fish that add color and excitement to the tank and are compatible with Glass Catfish

Diseases and Illnesses

DiseaseDescriptionTreatment
Ichthyophthiriasis (Ich)Ich is a parasite that causes white spots on the skin and fins of fish. It is highly contagious and can spread rapidly among fish in an aquarium.Ich can be treated with a combination of salt baths and commercial medications such as ich treatments or copper-based medications. Regular water changes and proper aquarium maintenance also help prevent the spread of Ich.
Fin RotFin rot is a bacterial disease that causes the fins and tail of a fish to become frayed and discolored. It is often a symptom of poor water quality or other stressors in the aquarium.Fin rot can be treated with antibiotics and improved water quality. The use of an aquarium filter, regular water changes, and appropriate aquarium conditions can also help prevent fin rot.
Swim Bladder DisorderSwim bladder disorder is a condition that affects the swim bladder, a gas-filled organ that helps fish maintain buoyancy. It can cause a fish to swim upside down or have difficulty swimming.Swim bladder disorder can be caused by a variety of factors, including overfeeding, constipation, and stress. Treatment may include fasting, feeding smaller, more frequent meals, or providing aquarium conditions that reduce stress.
ColumnarisColumnaris is a bacterial disease that causes ulcers and sores on the skin and fins of fish. It is often a result of poor water quality or stress.Columnaris can be treated with antibiotics and improved water quality. Maintaining appropriate water parameters, reducing stress, and regular water changes can help prevent the spread of Columnaris.
Velvet DiseaseVelvet disease, also known as gold dust disease, is a parasitic illness that causes a fish to have a yellow or golden sheen on its skin. It is highly contagious and can spread quickly in an aquarium.Velvet disease can be treated with commercial medications, such as copper-based treatments. Proper water maintenance, including regular water changes and monitoring water parameters, can help prevent the spread of velvet disease.

History and Origin

Glass catfish, also known scientifically as Kryptopterus vitreolus, are unique and fascinating freshwater fish that have a transparent body. They are native to Southeast Asia, and are found in large rivers with turbid water and fast-flowing streams.

This species of catfish is found in places such as Borneo, Sumatra, the Malay Peninsula, and the Chao Phraya and Mekong drainage basins. They inhabit large rivers and prefer peaty water. In the wild, Glass catfish are diurnal predators and mainly feed on water bugs and sometimes smaller fishes.

When you observe glass catfish, you will see that their bodies are virtually transparent with scattered patches of pigments on the head and underbelly. This transparency is due to the low number of melanophores on the body and the presence of guanine in the body wall. This guanine layer acts as a mirror and reflects the light and color of the habitat, making the fish effectively camouflaged from predators.

The glass catfish has a reduced dorsal fin and two long barbels for locating food, which are as long as the body in front of the anal fin. The pectoral fins are longer than the head, and the body of the glass catfish turns milky white when it dies. When struck by light, the glass catfish displays an iridescence, which is a characteristic that makes it a sought-after species for aquarium enthusiasts.

A glass catfish with rainbow like colors, when struck by light
A glass catfish with rainbow like colors, when struck by light

There are other species that are often mistakenly labeled as glass catfish. For example, the African Glass Cat, Parailia pellucida, is sometimes labeled as the glass catfish, so it is crucial to be aware of the characteristics that differentiate glass catfish from other similar species. This will help you avoid confusion when buying glass catfish for your aquarium.

Prior to 2013, the glass catfish was referred to and imported as Kryptopterus bicirrhis in the aquarium trade. However, new information about the species has shed light on the fact that very few of the larger Kryptopterus bicirrhis were ever actually imported, and the glass catfish that appear in most hobbyist tanks is in fact, Kryptopterus vitreolus.

Fun Facts

  • The scientific name Kryptopterus is derived from the Greek words “kryptos” meaning hidden and “pteryx” meaning fin. This is in reference to the reduced or absent dorsal fin of this group of fishes.
  • The common name “glass catfish” is derived from the Latin word “vitreus” meaning of glass, in reference to its transparent appearance in life.
  • In western Borneo, the glass catfish is known as “lais tipis” in the Malay language, but when locals want to distinguish it from its relative, they refer to it as “lais limpok.”
  • In Cambodia, the glass catfish is known as “trey kes prak” and is used to make the fermented fish paste “prahok.”

Conclusion

In conclusion, the Glass Catfish is a truly enchanting and captivating creature that is sure to bring a touch of magic to any aquarium. With its delicate appearance and peaceful disposition, this fish is a must-have addition to any community tank. So why not add a little sparkle to your tank today and bring home a Glass Catfish! Whether you’re a seasoned aquarist or a beginner just starting out, this fish is sure to captivate and delight.

Frequently Asked Questions

Q: What do Glass Catfish eat?
A: Glass Catfish are omnivores and can be fed a variety of food options, including bloodworms, brine shrimp, krill, daphnia, tubifex worms, mysis shrimp, blackworms, artemia, mosquito larvae, and flakes/pellets.

Q: How big do Glass Catfish get?
A: Glass Catfish typically grow to be around 3-4 inches (7.6-10.2 cm) in length.

Q: How long do Glass Catfish live?
A: Glass Catfish can live up to 10 years in captivity with proper care.

Q: How many Glass Catfish should I get?
A: It is recommended to keep Glass Catfish in schools of at least 4 individuals to promote their natural schooling behavior and provide them with a sense of security.

Q: Where are Glass Catfish from?
A: Glass Catfish are native to Southeast Asia, known primarily from the coastal river basins of Peninsular Thailand draining into the Gulf of Thailand south of the Isthmus of Kra.

Q: Are Glass Catfish aggressive?
A: No, Glass Catfish are not aggressive and are generally peaceful fish that do well in community aquariums.

Q: Are Glass Catfish schooling fish?
A: Yes, Glass Catfish are schooling fish and should be kept in groups of at least 4 (preferably 6 or more) to promote their natural schooling behavior and provide them with a sense of security.