![]() ![]() For example, the British publication Practical Fishkeeping started a campaign in 1996 to ask retailers to stop selling dyed fish, which led to a significant decrease in the number sold in the United Kingdom. Some members of the aquarium trade want to ban this practice. In addition, fishes injected with dye often die without apparent external disease symptoms, presumably due to kidney disease caused by injection. For example, one source reports a 300% increase in diseases such as Lymphocystis, Ichthyophthirius and finrot in painted aquarium populations compared to unpainted populations, possibly due to infection by dirty syringes. Many dyed fish die during this stressful, painful, process and those that do survive often are susceptible to disease. Tradenames: Jellybean Cichlid Cotton Candy Cichlid. Blood parrot cichlid ( Amphiliphus citrinellus x Heros severus).Tradenames: Patriotic Suckerfish Mixed Color Suckerfish. Suckermouth catfish ( Hypostomus plecostomus).Tradenames: Ice Blue Albino Cichlid Zebra Ice Albino Cichlid. African Rift Lake cichlids, such as Pseudotropheus.Tradenames: Blueberry Oscar Strawberry Oscar. ![]() Black tetra ( Gymnocorymbus ternetzi).Tradename: Painted glassfish Disco Fish Colored Glass Tetra. Indian Glassy Fish ( Parambassis ranga).Other than the Indian Glassy Fish, most dyed fish are albinos. In more recent times (2004-2005), injection dyed albino Plecostomus and rift lake cichlids have also become available. Some species, such as albino Corydoras and "painted" glassfish, are injected with dye using a hypodermic needle. These zebrafish are available in several fluorescent colours, protected by a United States patent. The technology was developed originally to produce a fish capable of detecting environmental pollution. Genetic modificationĪquarium fish genetically modified to fluoresce in bright colours under white or ultraviolet light are now available commercially in the United States, under the trade name GloFish. Lasersįish can also be tattooed using a low-intensity laser with a dye, a process developed for fisheries scientists but now applied to ornamental fish. One source reports that harmful dyes are sometimes used by wholesalers, however. Generally, these foods contain natural dyes such as beta carotene and are not harmful to fish, although as with other dye methods, the effect is temporary. Many varieties of "colour-enhancing" foods for aquarium fishes are available to the consumer. This method is reported to have a very high mortality rate. Fish may also be dipped in a caustic solution to strip their outer slime coat, then dipped in dye. Generally, fish are injected multiple times. There are a number of methods for introducing artificial colour to fish, although specific information on methodology is sometimes scanty.Ī common method of creating "painted fish" is through injection via syringe. ![]()
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