Goldfish @PoissonRougeParisien’s Tank Mate Departs Without Explanation After 28 Hours
PARIS — The Instagram goldfish @PoissonRougeParisien, whose ongoing dispute with @HamsterDuMarais over content format originality has generated more engagement than Paris Fashion Week coverage, has experienced a personal loss: the companion goldfish purchased to address his owner Gilles’s concern about the Instagram goldfish’s “aesthetic loneliness” (a concept Gilles developed from a comment thread) lasted 28 hours before departing the aquatic environment in the direction of the afterlife, leaving the original goldfish and Gilles in a state that Gilles describes as “complicated.”
“He seemed fine at 9pm,” Gilles confirmed. “At 7am he was not fine.” The 28-hour timeline is consistent with what aquarium enthusiasts call “new tank syndrome” — the accumulation of toxins in an uncycled aquarium whose biological filtration has not established. The pet shop where the companion was purchased has been diplomatically silent on whether they mentioned nitrogen cycling. The original goldfish has been in the same tank for four years. The tank was evidently cycled for one goldfish and introduced to the second goldfish without recalibration.
The Tank Ecology
Aquarium nitrogen cycling — the establishment of beneficial bacteria that convert fish waste ammonia to less toxic nitrates — is disrupted by the addition of fish whose waste load exceeds the established bacteria colony’s capacity. The 28-hour timeline is the established bacteria colony’s response time to the new load. The response was not fast enough.
According to France’s aquarium hobby association, new fish additions should not exceed 25% of established tank population at a time. The companion was 100% of the established population. The balance has been restored. @PoissonRougeParisien’s engagement rates have, counterintuitively, increased. Gilles did not post about the event. The comment section speculated. The speculation produced engagement.
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