Sunday, August 21, 2011
Most Expensive Aquarium Fish
Some consider fish to be the perfect pets. They don’t make a mess, don’t smell bad, don’t make noise, don’t need to be walked and you can put a bunch of them in the same room without worrying about your house getting torn up. You don’t even need to pet them. Of course, you may want to pay just a bit more attention to your fish tank if one of its inhabitants happens to be the most expensive aquarium fish in the world.
This particular aquatic vertebrate is a 15” platinum arowana owned by Aro Dynasty, a Dragon fish breeder based out of Singapore. Its white coloration is an exceedingly rare mutation of the rather common arowana. It is, however, not entirely perfect; its right eye has turned downward. This is a common problem with arowanas—so common, in fact, that many keepers are paying for cosmetic surgery for their prized arowanas.
Aro Dynasty has been offered $80,000 for the platinum arowana. A UK importer even offered the fish for £200,000 (nearly US $400,000). Unfortunately, the fish is not for sale. While we can’t entertain any hopes of ever owning it, those who attended Aquarama 2007 can still say that they have seen the world’s most expensive aquarium fish.
This particular aquatic vertebrate is a 15” platinum arowana owned by Aro Dynasty, a Dragon fish breeder based out of Singapore. Its white coloration is an exceedingly rare mutation of the rather common arowana. It is, however, not entirely perfect; its right eye has turned downward. This is a common problem with arowanas—so common, in fact, that many keepers are paying for cosmetic surgery for their prized arowanas.
Aro Dynasty has been offered $80,000 for the platinum arowana. A UK importer even offered the fish for £200,000 (nearly US $400,000). Unfortunately, the fish is not for sale. While we can’t entertain any hopes of ever owning it, those who attended Aquarama 2007 can still say that they have seen the world’s most expensive aquarium fish.
aquarium fishes
The Giant Danio (Devario aequipinnatus) is a tropical fish belonging to the minnow family Cyprinidae. Originating in Sri Lanka, Nepal, and the West coast of India, this species grows to a maximum length of 6 inches (15 cm), making it one of the largest of the danionins. They are characterized by a blue and yellow torpedo shaped body with gray and clear fins.
In the wild, Giant Danios live in clear streams and rivers among hills at elevations up to 1000 ft (300 m) above sea level. Their native substrate is small gravel . Giant Danios natively live in a tropical climate and prefer water with a 6.0 - 8.0 pH, a water hardness of 5.0 - 19.0 dGH, and a temperature range of 72 - 81 °F (22 - 27 °C). A surface dweller, their diet consists predominantly of exogenous insects, but is also supplemented by worms and crustaceans.
In captivity, the Giant Danio will usually accept most foods. It is a semi-aggressive fish, and may bully other fish in community tanks. The giant danio appreciates water movement to simulate the motion of the rivers and fast-moving streams that it comes from. It is a schooling fish.
The Common carp (Cyprinus carpio) is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.[2][3] The wild populations are considered vulnerable to extinction, but the species has also been domesticated and introduced into environments worldwide, and is often considered an invasive species.[2] It gives its name to the carp family: Cyprinidae.The common carp is a fish native to Asia which has been introduced to every part of the world with the exception of Eastern Europe, The Middle East and the poles. The original common carp was that found in the inland delta of the Danube river about 2000 years ago, and was torpedo-shaped and golden-yellow in colour. It had two pairs of barbels and a mesh-like scale pattern.
The black ruby barb (Puntius nigrofasciatus) or purplehead barb is a tropical fish belonging to the minnow family (Cyprinidae). Originating from Sri Lanka in forested streams from the Kelani basin to the Nilwala basin, they are found in streams on hills around 1000 ft (300 m) in elevation. The brightly colored population introduced to Mahaweli at Ginigathena, Sri Lanka are said to have diminished in number due to the aquarium export trade. It was originally named Barbus nigrofasciatus.
Copadichromis borleyi is a species of cichlid fish endemic to Lake Malawi in East Africa.[2] The species is popular in the fishkeeping hobby where it is frequently kept in aquariums.[3][4] The species has numerous common names used in the ornamental fish trade including: 'Redfin Hap' (or "Happy" or "Haplo") and 'Goldfin Hap'.[2][4]C. borleyi is a relatively small cichlid, males grow to 13-16 centimetres (5-6 in) total length, while females are typically slightly smaller reaching 13 centimetres.[3][4][5][6] In addition to these minor difference in size, the species displays marked sexual dimorphism with males displaying larger ventral fins marked with egg spots, light-blue edging to the dorsal and ventral fins, along with metallic blue colouration of the head, and yellow to red flanks. In contrast, females are silver-to-brown and display three black spots along their sides.[3] Juveniles are monomorphic and are coloured like the adult females.[6] Some intraspecific variation has been recorded with regard to colouration, these differently coloured forms are geographically restricted to certain localities in Lake Malawi.[6]
The Reedfish, Erpetoichthys calabaricus, Ropefish (a name more commonly used in the United States), or Snakefish is a species of freshwater fish in the bichir family and order. It is the only member of the genus Erpetoichthys. It is native to West Africa, with its natural habitat stretching from Nigeria to The Congo.
The Reedfish has a maximum total length of 37 centimetres (14.5 inches). It lives in slow-moving, brackish or fresh water[citation needed], warm water (22-28 °C), and it can breathe atmospheric air (meaning it is able to survive in water with low dissolved oxygen content) using a pair of lungs. This organ means it can survive for an intermediate amount of time out of water. The Reedfish is a nocturnal creature that feeds on annelid worms, crustaceans and insects at night, and it is sometimes displayed in aquariums. Its genus name, Erpetoichthys, derives from the Greek words erpeton ("creeping thing") and ichthys ("fish"). The genus is also known by the name Calamoichthys.[1]
Bichirs are elongated fish with a distinctive series of up to fifteen dorsal finlets, instead of a single dorsal fin. Each of these finlets has a sharp spine. The body is covered in thick, bonelike, ganoid scales. Their jaw structure more closely resembles that of the tetrapods than that of the teleost fishes. Bichirs have a number of other primitive characteristics, including fleshy pectoral fins superficially similar to those of lobe-finned fishes.[1] They also have spiracles.
Bichirs have rudimentary lungs, which allow them to obtain oxygen from the air when in poorly oxygenated waters,[2] by swimming quickly to the surface and back to the bottom. They are nocturnal, and feed on small vertebrates, crustaceans, and insects.[1]
Bichirs have a maximum body length of 97 centimetres (3.18 ft).[3
Arowanas are freshwater bony fish of the family Osteoglossidae, also known as bonytongues.[1] In this family of fishes, the head is bony and the elongate body is covered by large, heavy scales, with a mosaic pattern of canals. The dorsal and the anal fins have soft rays and are long based, while the pectoral and ventral fins are small. The name "bonytongues" is derived from a toothed bone on the floor of the mouth, the "tongue", equipped with teeth that bite against teeth on the roof of the mouth. The fish can obtain oxygen from air by sucking it into the swim bladder, which is lined with capillaries like lung tissue. The arowana is an "obligatory air breather".[2]
Angelfish may refer to:
Several groups of fish:
Freshwater angelfish, tropical cichlids of the genus Pterophyllum
Marine angelfish of the family Pomacanthidae
Angel shark of the family Squatinidae
Ringstraked guitarfish (Rhinobatos hynnicephalus), a species of guitarfish
Atlantic spadefish (Chaetodipterus faber)
Cave angelfish, a karst-dwelling member of the family Balitoridae, found only in Thailand
Flowerhorn cichlids are ornamental aquarium fish noted for their vivid colors and the distinctively shaped heads for which they are named. Their head protuberance, or kok, is formally termed a "nuchal hump." Like blood parrot cichlids, they are man-made hybrids that do not exist in nature. First developed in Malaysia and Taiwan, they are now kept by fish hobbyists worldwide. Some critics have questioned the impact of flowerhorn breeding programs.
The goldfish (Carassius auratus auratus) is a freshwater fish in the family Cyprinidae of order Cypriniformes. It was one of the earliest fish to be domesticated, and is one of the most commonly kept aquarium fish.
A relatively small member of the carp family (which also includes the koi carp and the crucian carp), the goldfish is a domesticated version of a less-colorful carp (Carassius auratus) native to east Asia. It was first domesticated in China more than a thousand years ago, and several distinct breeds have since been developed. Goldfish breeds vary greatly in size, body shape, fin configuration and coloration (various combinations of white, yellow, orange, red, brown, and black are known).
In the wild, Giant Danios live in clear streams and rivers among hills at elevations up to 1000 ft (300 m) above sea level. Their native substrate is small gravel . Giant Danios natively live in a tropical climate and prefer water with a 6.0 - 8.0 pH, a water hardness of 5.0 - 19.0 dGH, and a temperature range of 72 - 81 °F (22 - 27 °C). A surface dweller, their diet consists predominantly of exogenous insects, but is also supplemented by worms and crustaceans.
In captivity, the Giant Danio will usually accept most foods. It is a semi-aggressive fish, and may bully other fish in community tanks. The giant danio appreciates water movement to simulate the motion of the rivers and fast-moving streams that it comes from. It is a schooling fish.
The Common carp (Cyprinus carpio) is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.[2][3] The wild populations are considered vulnerable to extinction, but the species has also been domesticated and introduced into environments worldwide, and is often considered an invasive species.[2] It gives its name to the carp family: Cyprinidae.The common carp is a fish native to Asia which has been introduced to every part of the world with the exception of Eastern Europe, The Middle East and the poles. The original common carp was that found in the inland delta of the Danube river about 2000 years ago, and was torpedo-shaped and golden-yellow in colour. It had two pairs of barbels and a mesh-like scale pattern.
The black ruby barb (Puntius nigrofasciatus) or purplehead barb is a tropical fish belonging to the minnow family (Cyprinidae). Originating from Sri Lanka in forested streams from the Kelani basin to the Nilwala basin, they are found in streams on hills around 1000 ft (300 m) in elevation. The brightly colored population introduced to Mahaweli at Ginigathena, Sri Lanka are said to have diminished in number due to the aquarium export trade. It was originally named Barbus nigrofasciatus.
Copadichromis borleyi is a species of cichlid fish endemic to Lake Malawi in East Africa.[2] The species is popular in the fishkeeping hobby where it is frequently kept in aquariums.[3][4] The species has numerous common names used in the ornamental fish trade including: 'Redfin Hap' (or "Happy" or "Haplo") and 'Goldfin Hap'.[2][4]C. borleyi is a relatively small cichlid, males grow to 13-16 centimetres (5-6 in) total length, while females are typically slightly smaller reaching 13 centimetres.[3][4][5][6] In addition to these minor difference in size, the species displays marked sexual dimorphism with males displaying larger ventral fins marked with egg spots, light-blue edging to the dorsal and ventral fins, along with metallic blue colouration of the head, and yellow to red flanks. In contrast, females are silver-to-brown and display three black spots along their sides.[3] Juveniles are monomorphic and are coloured like the adult females.[6] Some intraspecific variation has been recorded with regard to colouration, these differently coloured forms are geographically restricted to certain localities in Lake Malawi.[6]
The Reedfish, Erpetoichthys calabaricus, Ropefish (a name more commonly used in the United States), or Snakefish is a species of freshwater fish in the bichir family and order. It is the only member of the genus Erpetoichthys. It is native to West Africa, with its natural habitat stretching from Nigeria to The Congo.
The Reedfish has a maximum total length of 37 centimetres (14.5 inches). It lives in slow-moving, brackish or fresh water[citation needed], warm water (22-28 °C), and it can breathe atmospheric air (meaning it is able to survive in water with low dissolved oxygen content) using a pair of lungs. This organ means it can survive for an intermediate amount of time out of water. The Reedfish is a nocturnal creature that feeds on annelid worms, crustaceans and insects at night, and it is sometimes displayed in aquariums. Its genus name, Erpetoichthys, derives from the Greek words erpeton ("creeping thing") and ichthys ("fish"). The genus is also known by the name Calamoichthys.[1]
Bichirs are elongated fish with a distinctive series of up to fifteen dorsal finlets, instead of a single dorsal fin. Each of these finlets has a sharp spine. The body is covered in thick, bonelike, ganoid scales. Their jaw structure more closely resembles that of the tetrapods than that of the teleost fishes. Bichirs have a number of other primitive characteristics, including fleshy pectoral fins superficially similar to those of lobe-finned fishes.[1] They also have spiracles.
Bichirs have rudimentary lungs, which allow them to obtain oxygen from the air when in poorly oxygenated waters,[2] by swimming quickly to the surface and back to the bottom. They are nocturnal, and feed on small vertebrates, crustaceans, and insects.[1]
Bichirs have a maximum body length of 97 centimetres (3.18 ft).[3
Arowanas are freshwater bony fish of the family Osteoglossidae, also known as bonytongues.[1] In this family of fishes, the head is bony and the elongate body is covered by large, heavy scales, with a mosaic pattern of canals. The dorsal and the anal fins have soft rays and are long based, while the pectoral and ventral fins are small. The name "bonytongues" is derived from a toothed bone on the floor of the mouth, the "tongue", equipped with teeth that bite against teeth on the roof of the mouth. The fish can obtain oxygen from air by sucking it into the swim bladder, which is lined with capillaries like lung tissue. The arowana is an "obligatory air breather".[2]
Angelfish may refer to:
Several groups of fish:
Freshwater angelfish, tropical cichlids of the genus Pterophyllum
Marine angelfish of the family Pomacanthidae
Angel shark of the family Squatinidae
Ringstraked guitarfish (Rhinobatos hynnicephalus), a species of guitarfish
Atlantic spadefish (Chaetodipterus faber)
Cave angelfish, a karst-dwelling member of the family Balitoridae, found only in Thailand
Flowerhorn cichlids are ornamental aquarium fish noted for their vivid colors and the distinctively shaped heads for which they are named. Their head protuberance, or kok, is formally termed a "nuchal hump." Like blood parrot cichlids, they are man-made hybrids that do not exist in nature. First developed in Malaysia and Taiwan, they are now kept by fish hobbyists worldwide. Some critics have questioned the impact of flowerhorn breeding programs.
The goldfish (Carassius auratus auratus) is a freshwater fish in the family Cyprinidae of order Cypriniformes. It was one of the earliest fish to be domesticated, and is one of the most commonly kept aquarium fish.
A relatively small member of the carp family (which also includes the koi carp and the crucian carp), the goldfish is a domesticated version of a less-colorful carp (Carassius auratus) native to east Asia. It was first domesticated in China more than a thousand years ago, and several distinct breeds have since been developed. Goldfish breeds vary greatly in size, body shape, fin configuration and coloration (various combinations of white, yellow, orange, red, brown, and black are known).
aquarium fish foods
The species of fish usually sold as feeder fish are invariably some of the easiest fish for fishkeepers to rear and breed, such as goldfish and guppies. Typically, these species are tolerant of overcrowding and have a high fecundity and rapid growth rate. This makes it easy for fish farmers, retailers, and hobbyists to maintain large populations of these fish that can be sold at a much more affordable price than the more delicate ornamental fish that require better conditions.
In some cases, species of predatory animals, typically large fish such as catfish and cichlids but sometimes also animals such as freshwater turtles, are provided with feeder fish because they accept them more readily than alternatives. Other animal keepers believe that feeder fish are particularly nutritious, being what their pets would eat in the wild. Still others view feeder fish as a stimulating treat that encourages predatory animals to exhibit their natural hunting behaviours. Some animal keepers enjoy watching the hunting and eating techniques involved when one animal eats another.
The mosquitofish, Gambusia affinis, is native to southern and eastern portions of the United States. Originally introduced into California as early as 1922, they have been one of the most effective non-insecticidal and non-chemical methods of controlling mosquitoes for over eighty years. Mosquito fish do not lay eggs, but rather give birth to live young. These fish, therefore, require no special environment, as most other fish do, for depositing and hatching their eggs. They breed throughout the summer and new broods are produced at intervals of about six weeks, with 50 to 100 young in a single brood. The young are approximately 1/4 inch in length when born and grow to a maximum size of about three inches. They are ready to begin the work of destroying mosquito larvae at once. Mosquitofish can eat mosquito larvae as fast as the larvae hatch from eggs, as many as 100 per day. The earliest brood of the season, born in April and May, become sexually mature and produce young when six to eight weeks old. Mosquitofish live 2-3 years and can tolerate a wide range of temperatures.
In some cases, species of predatory animals, typically large fish such as catfish and cichlids but sometimes also animals such as freshwater turtles, are provided with feeder fish because they accept them more readily than alternatives. Other animal keepers believe that feeder fish are particularly nutritious, being what their pets would eat in the wild. Still others view feeder fish as a stimulating treat that encourages predatory animals to exhibit their natural hunting behaviours. Some animal keepers enjoy watching the hunting and eating techniques involved when one animal eats another.
The mosquitofish, Gambusia affinis, is native to southern and eastern portions of the United States. Originally introduced into California as early as 1922, they have been one of the most effective non-insecticidal and non-chemical methods of controlling mosquitoes for over eighty years. Mosquito fish do not lay eggs, but rather give birth to live young. These fish, therefore, require no special environment, as most other fish do, for depositing and hatching their eggs. They breed throughout the summer and new broods are produced at intervals of about six weeks, with 50 to 100 young in a single brood. The young are approximately 1/4 inch in length when born and grow to a maximum size of about three inches. They are ready to begin the work of destroying mosquito larvae at once. Mosquitofish can eat mosquito larvae as fast as the larvae hatch from eggs, as many as 100 per day. The earliest brood of the season, born in April and May, become sexually mature and produce young when six to eight weeks old. Mosquitofish live 2-3 years and can tolerate a wide range of temperatures.
aquarium lights
Freshwater aquarium lighting often comes in two forms; one is a screw-in style incandescent bulb and the other is normal output fluorescent lighting. Screw-in compact fluorescent lighting is also used in freshwater aquaria since it provides brighter light output than traditional screw-in style bulbs.
More demanding freshwater set-ups, such as planted freshwater aquariums, may require stronger light sources. Compact fluorescent bulbs, high output T5 bulbs or metal halide lamps are often used over such aquariums to encourage plant growth. While these lights can provide a better spectrum than traditional ones, they often use more electricity and have a high heat output.
Improper or insufficient aquarium lighting causes fish stress, lessened activity and coloration, and poor growth and health in fish and invertebrates. The goal of fish tank lights is to replicate the natural conditions of light in natural habitats. Most aquarium fishes need up to 12 hours a day of the appropriate level of daylight, and it's up to you to give them normal days and nights as they don't have any other way to normalize behavioral cycles (like spawning or even feeding).
Aquarium light bulbs are different from ordinary light bulbs, which promote detrimental algae blooms and can lack the spectral range needed for aquarium health and visual enhancement. Aquarium light bulbs come in a range of types, spectra and intensities depending on what type of aquatic life you have and the depth of your tank
aquarium backgrounds
Aquarium owners have the luxury of having a piece of the underwater kingdom available for their viewing pleasure twenty four hours a day. Since a well maintained and presented aquarium can represent quite an investment, the die hard fish lover wants to perfectly display and enhance the appearance of his fish. One way to do this is through the use of aquarium backgrounds. These backgrounds can be made of various fish-safe materials and can be placed inside or outside the aquarium. Aquarium backgrounds come in an almost endless array of sizes shapes and colors, so it’s quite certain that there’s a background suitable for even the pickiest fish lover.
aquarium plants
In most pet shops it's easy to find a starter aquarium kit. It is a complete set containing aquarium, light, heater and filter. Most beginners would like a thriving aquarium with bold colours and a large number of fish. However, experience shows that a starter kit often provides low lighting levels so there are only few plants suitable to this type of aquarium. We have for this set-up chosen standard plants only!
Microsorum and Cryptocoryne are both slow growing and Echinodorus and Vallisneria to create volume in the aquarium. Limnophila is centrally planted, right under the light and is an example of a plant that grows fast and which helps creating a good balance in the aquarium.
TIP! By using AquaDecor products with plants like Microsorum and Anubias for the set-up, the aquarium will look more adapted from the start. These products require less light and they are already well established on root or lavastone.
AQUARIUM MEDICATIONS
Unfortunately, aquarium fish and organisms can get sick or injured too. Aquarium medications help you nurse your them back to health. We carry the most reliable aquarium medicines for bacterial, fungal, and parasitic infections, as well as topical treatments for wounds. Aquarium stress (from overcrowding or improper water conditions) weakens fish immunity, slows healing, and is a main cause of illness, so make sure you are also managing stress in your aquarium.
We strongly recommend medicating sick fish in a quarantine tank, while performing water changes and thorough cleaning of your main tank. If you have to treat your main tank, stop carbon filtration first, then resume afterwards to remove the medicines from your water.
Microsorum and Cryptocoryne are both slow growing and Echinodorus and Vallisneria to create volume in the aquarium. Limnophila is centrally planted, right under the light and is an example of a plant that grows fast and which helps creating a good balance in the aquarium.
TIP! By using AquaDecor products with plants like Microsorum and Anubias for the set-up, the aquarium will look more adapted from the start. These products require less light and they are already well established on root or lavastone.
AQUARIUM MEDICATIONS
Unfortunately, aquarium fish and organisms can get sick or injured too. Aquarium medications help you nurse your them back to health. We carry the most reliable aquarium medicines for bacterial, fungal, and parasitic infections, as well as topical treatments for wounds. Aquarium stress (from overcrowding or improper water conditions) weakens fish immunity, slows healing, and is a main cause of illness, so make sure you are also managing stress in your aquarium.
We strongly recommend medicating sick fish in a quarantine tank, while performing water changes and thorough cleaning of your main tank. If you have to treat your main tank, stop carbon filtration first, then resume afterwards to remove the medicines from your water.
water pumps
Aquarium Water Pumps
Aquarium water pumps provide circulation without currents. Water pumps have higher flow rates (GPH = gallons moved/hour) than powerheads, making them ideal for large tanks - for currents, add 1 or more powerheads (for more on water movement see our full-length article).
We carry submersible and external aquarium water pumps for circulation or high pressure setups. Clean filters regularly - if they clog, your flow rate slows dramatically.
Selecting the right pump for an aquarium application can be confusing. Too small and it might not do the job. Too big and it might be overwhelming for the fish and produce too much heat. There are a few factors to consider when selecting an aquarium water pump:
aquarium filters
Aquarium filters are critical components of both freshwater and marine aquaria.[1][2][3] Aquarium filters remove physical and soluble chemical waste products from aquaria, simplifying maintenance. Furthermore, aquarium filters are necessary to support life as aquaria are relatively small, closed volumes of water compared to the natural environment of most fish. Animals, typically fish, kept in fish tanks produce waste from excrement and respiration. Another source of waste is uneaten food or plants and fish which have died. These waste products collect in the tanks and contaminate the water. As the degree of contamination rises, the risk to the health of the aquaria increases and removal of the contamination becomes critical. Filtration is a common method used for maintenance of healthy aquaria.
Saturday, August 20, 2011
aquarium
An aquarium (plural aquariums or aquaria) is a vivarium consisting of at least one transparent side in which water-dwelling plants or animals are kept. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, marine mammals, turtles, and aquatic plants. The term combines the Latin root aqua, meaning water, with the suffix -arium, meaning "a place for relating to".
An aquarist owns fish or maintains an aquarium, typically constructed of glass or high strength acrylic plastic. Cuboid aquaria are also known as fish tanks or simply tanks, while bowl-shaped aquaria are also known as fish bowls. Size can range from a small glass bowl to immense public aquaria. Specialized equipment maintains appropriate water quality and other characteristics suitable for the aquarium's residents.
An aquarist owns fish or maintains an aquarium, typically constructed of glass or high strength acrylic plastic. Cuboid aquaria are also known as fish tanks or simply tanks, while bowl-shaped aquaria are also known as fish bowls. Size can range from a small glass bowl to immense public aquaria. Specialized equipment maintains appropriate water quality and other characteristics suitable for the aquarium's residents.
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