49 Years Real Fish Stories
49 Years of Real Fish Stories
Marine Biologist · Yechiel Kuperman
Yechiel Kuperman, marine biologist and author

Yechiel's Fishery Farm World

Welcome to Yechiel's Fishery Farm — a funny, dyslexia-friendly book world where kids meet cranky guppies, dramatic crabs, opinionated biofilters, and real fish biology disguised as adventure.

Discover our funny fishery farm books for kids and STEM books for children that are currently in publication, and get a sneak peek at what's coming soon.

The Complete George Series

In Publication
Front cover of Book 1: The Water Has Opinions — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 1: The Water Has Opinions — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 1

The Water Has Opinions

George the guppy has opinions. About water temperature. About his neighbor's rasping mouth on the back wall. About mornings in general. This morning, however, George has woken up somewhere that is not his tank, soaking in water that tastes of pennies and old rain and what he can only describe as wrong. Somewhere, something has gone badly sideways. George intends to find out what. He is not, for the record, cranky. He is displaced. There is a difference.

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In Publication
Front cover of Book 2: George and the Mosquito Patrol — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 2: George and the Mosquito Patrol — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 2

George and the Mosquito Patrol

George's new job is simple. Find mosquito larvae. Eat mosquito larvae. Save the bog from becoming a flying, buzzing nightmare. It would be the perfect job if not for one small complication. A celebrity. While George works quietly below the surface, an archerfish becomes the most admired fish in the bog by shooting insects out of the air. The crowds love him. The applause grows. And George begins to feel something he doesn't entirely like. Something prickly. Something cranky. Something that might be much harder to swallow than a mosquito larva.

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In Publication
Front cover of Book 3: George Meets the Salt Line — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 3: George Meets the Salt Line — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 3

George Meets the Salt Line

Water has a secret. If you add salt to one end of a tank and fresh water to the other, and forget to stir — the two layers do not mix. They sit, one on top of the other, with a sharp invisible wall between them. The wall has a name: the salt line. George the Cranky Guppy is about to find out what it feels like to cross one by accident. His colors will tell you exactly how that goes. A mistake was made. It was not his. That, unfortunately, does not matter to the water.

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Coming Soon
Front cover of Book 4: The Fizzy Bog Mystery — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 4: The Fizzy Bog Mystery — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 4

The Fizzy Bog Mystery

George the Cranky Guppy has, until this morning, had the bog running exactly as a bog ought to run: quietly, efficiently, and without too many surprises. Then something approximately the size of an eyelash swam directly into his face and asked what's that. There are hundreds of them. They are in his patrol patch. One of them is now following him. What exactly is Yechiel preparing in that covered tank — and why has he stopped drinking tea?

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Coming Soon
Front cover of Book 5: George Finds His Water — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 5: George Finds His Water — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 5

George Finds His Water

George the Cranky Guppy has spent five summers becoming, against his considerable better judgment, the most useful fish in the most complicated water on Yechiel's Fishery Farm. He has earned his patrol. He has earned his slow road. He has earned, arguably, a rest. So the kind old man has built him a perfect tank. Freshwater. Planted. Still. Beautiful. George's fan-tail now has to vote. And a five-year-old with a cockatiel on his shoulder has just arrived with a question nobody thought to ask.

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The Complete Plecy Series

Coming Soon
Front cover of Book 6: Plecy the Glutton Plecostomus — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 6: Plecy the Glutton Plecostomus — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 6

Plecy the Glutton Plecostomus

The Fish That Never Had Enough. Plecy the plecostomus has one job: eat algae, keep the tank clean, stay out of trouble. He is extremely bad at this. A funny, warm chapter book about appetite, consequences, and why some fish just don't know when to stop. Plecy Mini-Series, Book 1 of 5.

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Coming Soon
Front cover of Book 7: Plecy and the Mountain of Food — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 7: Plecy and the Mountain of Food — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 7

Plecy and the Mountain of Food

There is more algae than usual. Considerably more. Plecy has opinions about this and all of them are enthusiastic. But someone has to ask the question nobody wants to answer: where is it all coming from? Plecy Mini-Series, Book 2 of 5.

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Coming Soon
Front cover of Book 8: Plecy Meets Professor Nitra — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 8: Plecy Meets Professor Nitra — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 8

Plecy Meets Professor Nitra

Who is glowing inside the filter? Plecy investigates a strange blue-green light from deep within the filtration system — and finds something very small, very old, and very important. A chapter book about the nitrogen cycle, beneficial bacteria, and unexpected friendships. Plecy Mini-Series, Book 3 of 5.

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Coming Soon
Front cover of Book 9: Plecy and the Green Glass Feast — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 9: Plecy and the Green Glass Feast — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 9

Plecy and the Green Glass Feast

Today's special: Algae Buffet. The tank has never been greener, and Plecy has never been happier — until Yechiel starts reading the water test results. A story about healthy water, happy fish, and what it really means to take care of something. Plecy Mini-Series, Book 4 of 5.

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Coming Soon
Front cover of Book 10: Plecy Learns When to Stop — illustrated STEM chapter book for children ages 7–10 by marine biologist Yechiel Kuperman, Yechiel's Fishery Farm series
Back cover of Book 10: Plecy Learns When to Stop — showing synopsis and author details for this Yechiel's Fishery Farm STEM book

Book 10

Plecy Learns When to Stop

The Finale of the Plecy Mini-Series. Three tanks. Three colours. Three very different ecosystems. Plecy stands in the middle and must make the hardest decision of his life. A funny, moving conclusion to the series about biology, balance, and knowing your limits. Plecy Mini-Series, Book 5 of 5.

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