The Breeding Room · Wetherill Park, Sydney

500 tanks. Two levels. One obsession.

Most of what we sell isn't bought in — it's born here. Take a walk through the engine room of Micro Aquatic Shop.

Welcome inside

Not a back shelf — a real facility

Spread across two levels of our Wetherill Park warehouse, our breeding room holds around 500 aquariums and grow-out tubs. Each is its own little world — temperature, water and food dialled in — and each is checked, topped up and cared for by hand, every single day. This is where "healthy, well-coloured, consistent" actually comes from.

500

Tanks on site

Levels

Cherry lines

~35

Shrimp types

Medaka types

Plant varieties

The scale

Row after row, floor after floor

It's hard to capture in one photo — so here are a few. Aisles of tanks downstairs, more upstairs, all humming along together.

The process

How a MAS shrimp is born

From parent colony to your tank, every animal follows the same careful path. No shortcuts.

Breed

Selected parent colonies spawn in dedicated, stable, stress-free tanks.

Grow out

Juveniles are raised across hundreds of tubs until strong and well-coloured.

Select

We hand-pick for colour, form and health — only the best move forward.

Care

Weekly water changes and clean, planted grow-out keep every tank pristine.

Check & pack

Health-checked, quarantined where needed, then packed with oxygen for a safe trip.

What we raise

Born and bred at MAS

A living catalogue that's always growing — most of it raised right here on site.

🦐 ~35 shrimp types in-store 25 Neocaridina (Cherry) lines 4 native Australian shrimp 🐟 25 Medaka (ricefish) types 10 fancy guppy types 10 fancy balloon molly types 🐌 Many aquatic snail types 🌱 50 plant varieties 🍃 10 moss types