In January this year, it was reported in the press that Qian Hu fish farm had imported 500 Molly fish tattooed with numbers from 0 to 9, many customers buying four fish at a time obviously in the hope of striking it lucky at 4D.

The SPCA objected strongly to this in the press, and urged the Agri-Food & Veterinary Authority (AVA) to ban the importation on the basis that it was cruel, unnatural and unnecessary. AVA responded that a ban was unnecessary as there is currently no international ban on trade in dyed fishes.

The SPCA's opinion however, is that a ban is necessary because the welfare of the fish is compromised.


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The tattooing process involves:
1. Handling the fish out of the water which removes the protective slime containing anti-bodies to protect them from disease.

2. Puncturing the fish with needles to inject the dye. If the dye is contaminated, the entire batch can die. Contained environnments (fish tanks etc.) contain a cocktail of microbes and bacteria.

3. There is also the possibility of post tattooing infection too.

4. If the fish are stressed, it lowers the immune system making it more susceptible to diseases and infections.

In SPCA's opinion, importing and selling tattooed Molly fish, is clearly a marketing gimmick to attract the public to buy them on the spur of the moment in the belief that the numbers will bring them luck. This does not encourage responsible pet ownership and we urge the public not to purchase these fish.