Skip to main content
Watercolour illustration of Yechiel Kuperman showing three teenagers a mangrove tank with George the Cranky Guppy, inside the Fishery Farm workshop.
Yechiel's Fishery Farm · 49 Years Marine Biology

The Bog's Blog

Thoughts, observations, and occasional complaints from the residents of the Fishery Farm — real marine biology, genuinely funny, for ages 7–10.

Latest dispatch

Fishery Tales

Madame Molly's Corner · Issue #4

On Luck, Colour, and Breathing First

Madame Molly, a lyretail black molly, offers gentle thoughts on luck, colour, and moving comfortably between fresh, brackish, and salt water.

Madame MollyMadame Molly·5 min read
Read the story

Every story from the farm

Fishery Tales

Sir Bubbleton's Journal of Civilised Observations

Sir Bubbleton the Gourami explains the labyrinth organ that lets him breathe air at the surface — and why his surface breath is a necessity, not a tea-time choice.

Sir BubbletonSir Bubbleton7 min
Fishery Tales

I Have Checked For The Net

Pinchy the Hermit Crab hunts the whole tank for the 'inner-net,' never finds it, and decides George would be far less cranky with a good shell instead.

Pinchy the Hermit CrabPinchy the Hermit Crab2 min
Fishery Tales

Guppies Are Not For The Internet

George the Cranky Guppy explains why a mosquito-larvae-eating bog patroller has no business writing a blog — and files his official position on the internet.

George the Cranky GuppyGeorge the Cranky Guppy2 min
Marine Biology

Why Guppies Are One of the Most Important Fish in the World

Marine biologist Yechiel Kuperman on why guppies — natural predators of mosquito larvae used in malaria and dengue control programmes — are among the most important fish in the world.

Yechiel KupermanYechiel Kuperman3 min
For Parents

Why Dyslexia-Friendly Does Not Mean Dumbed-Down Science

Dyslexia-friendly means changing the presentation, not the science: short paragraphs and humour as memory hooks, with real osmotic pressure, trophic levels, and the nitrogen cycle left fully intact.

Yechiel KupermanYechiel Kuperman3 min
Kids' Science

Aquarium Science, Answered for Curious Kids

The five aquarium questions kids ask most, answered simply: the nitrogen cycle, euryhaline mollies, labyrinth-organ breathing, whether algae eaters really clean a tank, and why sudden water changes stress fish.

Yechiel KupermanYechiel Kuperman4 min