About Us
A reef tank brand bringing the beauty of Sekisei Lagoon
It all began with a single experience.
Inspired by a film, a boy once dreamed of seeing the Great Barrier Reef with his own eyes.
Instead, he discovered Sekisei Lagoon, one of Japan’s largest coral reef ecosystems.
Before us stretched the turquoise waters of Sekisei Lagoon.
Beneath the surface was a world of sea life beyond anything words could describe.
We wanted to share this feeling with more people.
To bring the beauty of the sea into everyday life, just as it is, and create a small, beautiful ocean of our own.

The logo takes inspiration from the Japanese character “礁,”
abstracting its form into the shape of coral.
It quietly expresses our identity as a brand born in Japan,
while a gradient palette inspired by the colors of a lagoon
brings the design together as a whole.
Beyond the Aquarium, There Lies a Reef
What we seek lies beyond simply keeping coral.
It is understanding.
By engaging each day with the small ocean within an aquarium,
we hope to inspire a deeper interest in the real coral reefs that lie beyond it.
we hope to inspire a deeper interest in the real coral reefs that lie beyond it.
To create that connection — a gentle cycle between aquariums and the real reefs beyond them — is our mission.
Concept
Beyond the tank, there is the ocean.
- 03Sekisei LagoonOur interest turns to the sea. The tank connects to the ocean.
- 02REEF FOLKKeep records and share what you learn
- 01LBRRaise corals in your tank
Hello !

From an early age, I have always found myself engaging with the living world around me.
Keeping a living creature is a process of understanding the environment on a smaller scale.
Through Little Barrier Reef, I want to inspire a deeper connection with the coral reefs
History
A life with living creatures
- 2006
The Origin
My first pet was a ryukin goldfishA film made me long for saltwater fish, but they were too difficult for a child
- 2008
The rhinoceros beetle craze
A popular arcade game of the time got me into rhinoceros beetlesI read field guides day and night and even kept an Atlas beetle
- 2011
Insects × Water
I discovered how fascinating aquatic insects areI kept and bred everything from diving beetles to giant water bugs
- 2015
Awakening to amphibians
Learning about newts drew me into creating aquascapesI came across the idea of the terrarium
- 2021 —
Back to where it began
At last, a saltwater aquariumKept a carpet anemone for four years
※Little Barrier Reef is an independent brand operated by Ryoma Hayashi.
