Painted / Dyed fish

What's all the fuss about, aren't they just fish?

These are the steps taken by unscrupulous breeders, this is what all the fuss is about:

The fish is dipped in an acid solution that removes the protective slime coat (part of the fishes immune system). Next, the fish is injected with semi-fluorescent dye, the needle used would compare to you getting a flu shot with a needle the size of a normal hb pencil. The fish may also be dipped directly into the dye in the case of most loaches and parrot fish. Next the fish is placed in an irritant bath in an effort to start regenerating the protective slime coat. Only 20% of fish survive this initial process, many others will die from disease or have a shortened lifespan because of this treatment. The high mortality rate, combined with the fact that most dyed fish will lose their unnatural colors within 8-10 months, hardly makes this whole process seem necessary.


  • GloFish The GloFish are engineered to be luminescent by adding a fluorescent gene, this causes no physical pain to the fish.

    List of common and uncommon fish that you would find either dyed, painted or injected:

    Trade Name
    Species
    Method of Dyeing
    Colors Availiable
    Gold Dollar Bala Shark, Balantiocheilus melanopterus Dipped Gold
    Unknown Rainbow Shark, Labeo erythrurus Dipped Blue, Red, Purple
    Rainbow Ompok Irridescent Shark, Pangasius sutchii Dipped Blue, Red, Purple
    Blushing Tinfoil Barb, Gold Dollars Tinfoil Barb, Barbodes schwanenfeldi Dipped Blue, Red, Green, Pink, Purple, Gold
    Oriental Tigerfish Tiger Barb, Barbus tetrazona Dipped Blue, Red, Purple, Green, Pink, Orange
    Rainbotia Redtailed Botia, Botia modesta Painted Red, Green, Yellow, Orange, Purple, Pink
    Painted Glassfish, Disco Fish, Painted Glass Glassfish, Chanda ragna Injected Red, Green, Yellow, Orange, Purple, Pink
    Blueberry Tetra, Strawberry Tetra, Berry Tetra, Painted Tetra Black Widow Tetra, Gymnocorymbus ternetzi Painted Blue, Pink/Purple
    Unknown Corydoras catfish Injected Red, Green, Yellow, Orange, Purple, Pink
    Blueberry Oscar, Strawberry Oscar Oscar, Astronautus ocellatus Dipped Blue, Pink
    Cotten Candy Parrots, Parrotfish Parrot Fish, Amphiliphus citrinellus x Heros severus Dipped & Injected Red, Green, Yellow, Orange, Purple, Pink & 'Combos'
    Rainforest Ramirezi German Blue Ram, Mikrogeophagus ramirezi Dipped & Injected Intensified Blue, with green & black "cowlike" pattern
    Gumballs Convict Cichlid, Archocentrus nigrofasciatus Injected Red, Green, Yellow, Orange, Purple, Pink, & 'Combos'
    Polka-Dot Gourami Giant Gourami, Osphronemus gouramy Injected Multiple Times Pink
    JellybeanParrots Blood Parrot x Convict Cichlid Hybrid, Archocentrus nigrofasciatus x [Amphiliphus citrinellus x Heros severus] Dipped & injected Pink, Green, Blue, Red, 'Combos'
    Kiss the Blarney Gouramis Kissing Gourami, Helostoma temminkii Injected Green
    Glod Severums Severum, Heros severus Dipped & Injected Red, Blue, Green, Orange, Purple, Pink, Black
    Colored Suckerfishes Siamese Algae Eater, Gyrinocheilus aymonieri Dipped & Injected Red, Blue, Green, Yellow, Orange, Purple, Pink
    Colored Nyassae Peacock Nyassae, Aulonocara stuartqranti Injected Multiple times Gold, Purple
    Ice Blue Albinos Pseudotropheus greshakei Injected & Dipped Red, Blue Green, Orange, Purple, Pink
    Zebra Ice Albinos Zebra Cichlid, Pseudotropheus zebra Injected & Dipped Red, Blue, Green, Orange, Purple, Pink
    Patriotic/Mixcolor Suckerfish Plecostomous, Hypostomous plecostomous Injected & Dipped Red, Blue, or a combination of Red, white, & blue
    Rainbow Filomenae Moenkhausia sanctaefilomenae Dipped & Injected Red, Blue, Green, Orange, Purple, Pink
    Colored Paradisefish Paradise Fish, Macropodus opercularis Dipped & Injected Red, Blue, Green, Orange, Purple, Pink
    Rainbow Tiger Botias Tiger Botia, Botia hymenophysa Dipped & Injected Red, Blue, Green, Orange, Purple, Pink
    Colored Yellowtailed Botias/Rainbow Goats Botia lecontei Dipped & Injected Red, Blue, Green, Orange, Purple, Pink
    Blueberry Honey Honey Gourami, Colisa labiosa Injected Deep Blue
    Colored Fighters Betta, Betta splendens Injected & Dipped Purple, Black, White, Green, Yellow, all deep & in combinations
    Dinnerplates, Rainbow Pompaudorfishes, Colored Discus, Sundiscs Discus, Symphysodon aequifasciata/heckel/axelrodi Injected & Dipped Purple, Red, Yellow, Blue, all in combinations
    Jellybeans, Icepops Goldfish, Carassius auratus, & most variants Injected, Dipped, Painted Purple, Black, White, Green, Yellow, & combinations


    The practice of painting fish, also called juicing or dying the fish, appears to have actually started in the late 1970s with the Glass Perch (Chanda ranga or Chanda wolfii), also known as the Indian Glassfish, the Indian Glass Tetra, the Glass Tetra, or simply as the Glassfish, being injected or "juiced" with stripes of bright colored pigments along their dorsal and ventral lines. Though this produces a very striking looking fish, the hobbyists of the day quickly realized that this coloration was artificial, and protest throughout most of the US and Western Europe appeared to have eliminated these fish from the hobby, to everyone's relief (possibly except the suppliers). In a lot of cases the dye is actually carcinogenic, the more intensely colored areas are created by injecting the fish with more of the dye in strategic locations. The fish's immune system then proceeds to fight this infection until the dye has been removed from the system. This added stress makes these fish highly susceptible to any other infection which they may be exposed to, since they are unable to defend themselves from it.

    However, in the late 1980s, this fish worked its way back into the marketplace. This time either people are less concerned about the welfare of these animals, or there are enough shops that are more interested in the bottom line than the welfare of these animals, that they do not appear to be disappearing from the market, but this affliction of juicing or dying has spread to many other species and varieties.

    What can I do?

    Do not buy these fish, ever! Even if you feel sorry for them or if they are going to die, buying them only increases the demand, if no one buys them, they will stop.


    Glass Fish, Blueberry Oscar, Injected Parrot Fish, Dipped Parrot Fish, Kaleidoscope Gourami, Painted, Dyed, Injected, colormedead, glofish


    Most aquarists could only dream of having such a stunning rainbow of fish! But sadly, these fish will usually lose their colour within 2-3 months, and 90%+ will die before the colour even fades. It's bad enough they're being treated so inhumanely, but we're being sold inferior fish that will die very quickly on top of that!

    More information is always a good thing!

  • Painted Fish What wikipedia has to say.
  • Practical Fishkeeping They ran a campaign in the UK in 1996 to get all aquatic retailers to sign a pledge that they would not sell dyed fish.
  • Death By Dyeing An organization devoted to halting the barbaric process of injecting ornamental tropical fish with colored dyes and carcinogens.