[citricsquid]

As a child I received some Sea Monkeys as a gift, after growing them for a couple of days I started to notice the number of individuals shrinking and the remaining Sea Monkeys growing quite large, eventually I was left with just one "Sea Monkey" that was almost an inch long. Turns out I'd been given Triops, cannibalistic crustaceans, not cute little harmless Sea Monkeys. https://en.wikipedia.org/wiki/Triops_longicaudatus

[SwellJoe]

Dude, you had a living fossil as a pet! That's possibly cooler than Sea Monkeys. (Though, I enjoyed having Sea Monkeys as a kid.)

[Zuider]

A well meaning family friend gave my son Sea Monkeys for his birthday years ago. When my wife discovered they were really vermin, they had an unfortunate accident.