Complete your order
These products are necessary to your success with the AK Culturi-S II, if you don't already have these items then we recommend picking some up now.
Pick a phytoplankton strain
Live Phytoplankton (Nanno)
Tetraselmis Starter Culture
Isochrysis Starter Culture
Pavlova Starter Culture
Plus, something to feed it
100ml Guillard's F2 Phytoplankton Fertiliser
Add some bubbles!
Aqua One Single Outlet Air Pump 60LPH
Optional extras
AK Culturi-S Vessel Kit
AK Culturi-S Replacement Lid Kit
Zooplankton Harvesting Tool
Culture Clear
Parker's Reef Showcase
Join Sam as he unboxes the AK Culturi-S, walks through setup and culture preparation, then checks back days later to reveal the impressive growth results. His hands-on demo shows just how effortless and consistent culturing can be with our simple but smart phytoplankton reactor.
Compact, smart culturing made simple.
Culturing micro-algae requires consistent lighting, sealed sterile conditions and reliable equipment. The AK Culturi-S II gives you all that in a compact footprint.
1L Vessel
Produces enough phytoplankton weekly to satisfy most reef tanks, even with high demand biodiversity
Full Spectrum
The full spectrum RGB+CCT LED light features smart-home technology packed with Grid Connect, Google Home, and Alexa support
Scheduling
Smart scheduling and automation via app
Sealed System
Pressure-release valve and precision glass tubing maintain sterile culture conditions with zero contamination risk.
Spare Parts
All parts are replaceable, if you've cracked a vessel, broken the rigid tubing, lost the lid, we've got you.
Higher Success Rate
Unlike DIY setups built from random parts, Culturi-S II keeps cultures sterile, delivers optimal light output, and ensures even illumination for faster, more reliable growth.
Why buy it?
Here's a few reasons that makes the AK Culturi-S bang worth it's buck, over typical DIY setups...
Everything in One Kit
Buying the AK Culturi-S II saves you time going from shop to shop, researching lighting, air pumps, fittings, and containers that actually work together. Everything you need to start and maintain a healthy phytoplankton culture is already included, tested, and compatible.
Hygienic Glass Construction
Glass components are easy to clean and maintain, unlike typical setups that use black tubing and porous plastic containers where bacteria easily accumulate.
Dedicated Expert Support
Get free tips and guidance directly from our team. We’re here to answer your questions with practical, experience-based advice to help you succeed.
It's likely more than enough...
For most aquarists, a 1L culture is plenty for weekly use. Many even end up with extra. There’s no need to grow more than your tank requires; it’ll only take up fridge space or end up going to waste.
Proudly Australian Made
You bet. The AK Culturi-S II is proudly made, assembled, packaged, and shipped right here in Australia.
What's in the box
Everything you need to get started
AK Culturi-S II Light Unit
Boasting an efficient 6W 6500K RGB+CCT smart light, it keeps cultures at stable, near-perfect temperatures for faster, healthier growth.
1L Glass Culture Vessel
More than enough for most reef systems. Add a second vessel and rotate weekly, connect your doser to the previous culture for a steady, automated supply using a peristaltic pump.
Culturi Vessel Lid
Custom-designed for a thick, airtight fit, the branded AK lid looks great and comes with all necessary seals and a pressure-release valve to protect your cultures from foreign airborne contaminants.
Glass Rigid Tubing & Pipe Cleaner
Easy to clean glass rigid tubing makes sterilisation a breeze
4mm Airline Tubing (1.5m)
All necessary connections
Microfibre Cleaning Cloth & Pipette
Simple necessary accessories for every culture enthusiast, the cloth for cleaning the glass in-between cultures, and the pipette for precising dosing of our Guillard's F/2 fertiliser.
Detailed Instructions
A quick start guide to throw you straight into a successful culture, complete with QR codes to take you to useful resources.
Phytoplankton feeds everything
Phytoplankton gut loads filter feeders like copepods, rotifers, and other zooplankton giving them a higher nutritional value when consumed by your fish and/or corals. Phytoplankton is also responsible for 51%~ of the worlds oxygen.
Frequently Asked Questions
Q. What's the total fill volume of the AK Culturi-S II?
A. The vessel features a max fill line which is positioned exactly at the 1 liter mark, so the total volume of water possible is 1 liter (+-1-2mL)
Q. Is the lighting spectrum adjustable?
A. Yes. Use the app to adjust between 3000–6500 K white light or select RGB modes. You are also able to modify the brightness, which can help refine temperatures and lower lighting intensities can be required for more sensitive strains.
Q. Is any starter culture or fertiliser included as standard?
A. Both starter cultures and fertiliser are sold separately.
Q. Why did I receive multiple tracking numbers?
A. This is usually because your order contained a combination of items, which had to be fulfilled and shipped from multiple locations. No additional fee is added to your order, we cover the price of the additional shipping in these occurrences.
Q. Is the AK Culturi-S II 3D printed?
A. Yes, this model of the Culturi marks our first step into a new wave of innovation. With enough support from the community, we’ll continue refining and expanding our designs, potentially moving into injection-moulded production in future.
Q. What's the point of RGB?
A. It’s what we call “surplus functionality”. That said, if you’re interested in experimenting, the Culturi can also be used to kick-start macroalgae like Dragon’s Breath or Caulerpa, which benefit from the red spectrum. For phytoplankton, though, white light remains the gold standard for optimal photosynthesis. We've chosen this light for it's ability to handle on/off scheduling, brightness adjustments, nothing more. Besides, a little disco-mode is fun when harvesting, right?
What's the difference between Culturi-S and Culturi-S II
Functionally there is no difference between the Culturi-S and the Culturi-S II. The update is purely about how it can be manufactured. The original design could only be produced on a 3D printer. The new Culturi-S II design is shaped so it can be injection moulded, which is essential for large scale production. The performance and use in your system remain exactly the same.
