
Compact reactor
AK Culturi-S
The compact 1 L phytoplankton reactor, and the one to build a line-up from. Sterile sealed culturing, a light you can tune to the species, and your own air supply feeding it, so you can filter what goes in or run several off one pump.
- Culture volume
- 1 L
- Feeds tanks to
- 1,400 L
- Light
- 6 W RGB+CCT
- Built
- Australia
A$152.00AUD
Ships with an AU plug, for standard 240 V homes only. In the US or Canada? The US model lives on our US store. Anywhere else, ask us for a foreign shipping quote and we will sort it out.
- Free step-by-step Launchpad guide
- Harvest up to 1 L every 5 to 7 days
- Sterile sealed culturing
- Spare parts stocked
Launchpad
New to culturing, or giving it another go?
Plenty of people write culturing off after one bad run with a jar and a bit of luck. Almost none of them were ever shown the part that actually matters, so we wrote it down. The Launchpad is our free, step-by-step guide, and the Culturi-S has its own walkthrough inside it.
Eleven steps in total: four to get the reactor ready, then seven you repeat for every batch. No jargon, no guesswork, and nothing you need to buy to read it.
- 40 min Setup
- 5 to 7 days Harvest
- 1 L Working volume
- Set up onceUnbox, fit the rigid tubing, sterilise, prepare your saltwater.4 steps
- Every batchFill, fertilise, add your starter, open the airflow, watch it darken, harvest, reset.7 steps
One light, two jobs
Tune the light to what you are growing
The Culturi-S carries a 6 W smart RGB and CCT LED, 520 lumens and adjustable from 3000 to 6500 K, so the spectrum is yours to set.
Phytoplankton thrives under bright white light. Full output, run long and steady, and the culture greens up fast.
Macro-algae responds best to strong red and blue spectrums, so the light drops the middle of the range and pushes the two ends.
No extra hardware and no second unit. The light does it.
Set it once and leave it
Schedule the light from your phone, or just ask. The light unit pairs with the smart home you already run, so a culture cycle keeps itself honest whether or not you remember it.


Second vessel
Move the vessel, not the phyto
With a spare vessel
No bottles
Just swap the vessel
No second light needed
When a culture is ready, carry the whole vessel over to your dosing station and put the spare on the light. No decanting into bottles, no funnel, no rinsing something out before you can use it.
The kit is a complete second vessel: lid assembly, seals and rigid tubing, ready to run on the light unit you already own.
In the box
- 1x 1 L glass culture vessel
- 1x AK Culturi lid, with seals, tubing cap connector and pressure-release valve
- 1x Glass rigid tubing
- 1x 8 mm to 4 mm airline connector
- 1x AK Culturi light unit, 6 W smart RGB+CCT LED, AU plug
- 1x Rigid tubing cleaner
- 1x Microfibre cleaning cloth
- 1.5 m 4 mm flexible airline tubing
Specifications
- Culture volume
- 1 L
- Harvest
- Up to 1 L every 5 to 7 days
- Suits reef tanks to
- 1,400 L
- Dose rate
- 10 mL per 100 L daily
- Light
- 6 W smart RGB+CCT LED, 520 lm, 3000 to 6500 K
- Control
- App and voice
- Power
- AU plug, 240 V
- Cultures
- Phyto, macro-algae
- Assembled size, W x L x H
- 106 x 106 x 313 mm
- Shipping weight
- 1 kg
- Built
- Australia
Full product description
The AK Culturi-S is a compact 1L phytoplankton reactor designed for Australian reef keepers. This plug-and-play phyto reactor delivers consistent, sterile, high-yield phytoplankton cultures with smart RGB+CCT lighting, sealed glass vessel, and full app control - no DIY guesswork required.
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1L High-Quality Glass Container - Detachable, interchangeable, and easy to sterilise.
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Auto-Sealing Pressure Release Valve - Durable custom seals for worry-free operation.
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Sealed Rigid Glass Tubing - 4mm connector, perfect for sterile workflows.
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520 Lumen RGB LED (6500K) - Full-spectrum 6W smart light with adjustable white (3000-6500 K), RGB modes, and app-based dimming and scheduling.
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Smart Automation - Controlled via Grid Connect app; compatible with Google Assistant & Alexa for full voice and timer automation.
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Anti-Vibration Feet - Stable and reliable performance.
Whether you’re culturing phytoplankton or macro-algae, the Culturi‑S gives you full control of lighting conditions to match the species you’re growing.
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Phytoplankton thrives best under bright white light.
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Macro-algae responds best to strong red and blue spectrums.
Pre-orders open now. First units ship mid-August.
Upgrade your culturing game with the AK Culturi-S - small, smart, and seriously effective.
Box Contents:
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1× 1L Container
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1x AK Culturi Lid (including seals, connector to tubing cap & pressure-release valve)
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1x Glass Rigid Tubing
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8mm-4mm Airline Connector
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1x AK Culturi Light Unit with 6W Smart RGB+CCT LED (AU Plug, app/voice controlled)
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1x Rigid Tubing Cleaner
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1x Microfibre Cleaning Cloth
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1.5 metres 4mm Flexible Airline Tubing
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Starter Culture (Optional)
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F/2 Fertiliser (Optional)
- Air Pump (Optional)
1 year warranty
Hassle free, fast replacement for any light, pump or seal issue. Send a quick video and we sort it out.
This product is 3D printed, manufactured on top-end printers. It is tried, tested and endorsed by many reefers for its convenience, including improved sterility over typical DIY setups, its appeal, and the included guidance that significantly contributes to everyone's success.
