A living aquatic ecosystem by Microcosmos Atelier

Living aquatic ecosystems

A little piece
of nature, made yours.

I design and build aquariums that work as a small ecosystem: full of plants, stable, and made to last for years.

What is a Microcosmos?

More than an aquarium.
A small ecosystem at home.

A Microcosmos is an aquarium that works as a small ecosystem, designed for your space.

Plants clean the water, bacteria in the substrate break down waste, shrimp and snails tidy up, and the fish bring movement. Every part has a job.

A system like this needs little intervention and stays stable for years. It doesn't stand still, though: plants grow, new life appears, and that makes it a pleasure to watch.

The idea

A system that finds
its own balance.

A healthy aquarium runs on balance: enough plants, the right inhabitants, and time.

I make sure the basics are right: a substrate where bacteria can settle, lots of plants that take up the nutrients, and inhabitants that suit each other and the tank.

Then I let the system do its work. In the first months it grows towards a balance. That takes patience, but then you have an aquarium that stays stable without constant adjusting.

What looks beautiful on day one looks different a year later, and often even better. In the journal I follow how my own tanks evolve.

01Water

The medium connecting everything.

02Plants

Growth, structure and transformation.

03Substrate

A foundation for roots and microbial life.

04Microorganisms

The invisible engine of the ecosystem.

05Invertebrates

Grazers, recyclers and inhabitants.

06Fish

Movement, behaviour and character.

Inspiration

Where would you
like to go?

A Microcosmos can take many forms. These images are visual interpretations created to explore different directions — they are inspiration, not photographs of existing projects.

Jungle-inspired Microcosmos

Inspiration 01

Forest

Lush vegetation, layered greenery and the feeling of being immersed in a tropical forest.

Amazon-inspired Microcosmos

Inspiration 02

Littoral

The meeting of land and water — roots, vegetation, open water and natural transitions.

Blackwater-inspired Microcosmos

Inspiration 03

Blackwater

Darker waters, natural tannins, wood and the quiet, mysterious atmosphere of tropical rivers.

A fully bespoke Microcosmos

Inspiration 04

Your own little world

Start with a place, a memory, an ecosystem — or simply a feeling.

From idea to ecosystem

Designed around
your world.

01

Getting to know each other

We start with a free, no-obligation conversation and a visit to your space. Where will it live, what is the light like, and what do you want to feel when you look at it?

02

Design and proposal

I make a design with a first proposal. Together we refine it into a detailed proposal: layout, materials, plants and inhabitants.

03

Build and installation

I build everything as one coherent system, from substrate to planting. Count on about 6 to 10 weeks, mainly depending on the delivery of the aquarium.

04

The ecosystem comes to life

After the handover, the system settles and keeps growing. Over 2 to 3 months, the fish are added.

More about the process in the FAQ

How we can work together

What I do,
and what you choose.

For the care after the handover, you choose how involved you want to be.

Always included: design · composition · build

01

I take care of it

With a monthly service contract, I do all the maintenance. You simply enjoy it and only feed the fish.

02

You care, I help

You look after it yourself. If you have questions or need a hand, you call on me whenever needed, on a time-and-materials basis.

03

Tailored

For unusual spaces, large installations, a paludarium or a very specific idea, we find the right approach together.

Start a conversation

My work

My own aquariums.

These aquariums are in my own home, in my atelier. Some have been running for years.

Fallen Forest MicrocosmosOrinoco-inspired Littoral Zone MicrocosmosBorneo Understory MicrocosmosShallow riverbed Microcosmos
Explore the projects

From the journal

Latest from the journal.

How my aquariums grow and change, from start-up to a stable ecosystem.

Go to the journal

About

It started with
a goldfish bowl.

My first aquarium was a bowl of goldfish, won at the fair when I was five. I've never stopped since.

This summer I started Microcosmos Atelier to help others to an aquarium that stays healthy for years.

More about me
Kasper Masschaele

Contact

Do you have a place in mind?

You don't need to know exactly what you want yet. Tell me about your space and your idea, and we'll look at what's possible together.

Start a conversation