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High demand right now, delivery expected by October 5
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AK Culturi-S Standard

Compact reactor

AK Culturi‑S Standard

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 (33.8 US fl oz)
Feeds tanks to
370 US gal
Light
6 W RGB+CCT
Built
Texas, USA

$174.00USD

Pre-order. Expected to ship mid October. Order now and yours goes out with the first run.

Phyto coming soon...Live starter cultures, shipping from Texas shortly.

Ships with a US plug, for standard 120 V homes across the US and Canada. In Australia? The AU model lives on our AU store. Anywhere else, ask us for a foreign shipping quote and we will sort it out.

  • Runs on your own air pump
  • Harvest up to 1 L every 5 to 7 days
  • Sterile sealed culturing
  • Free step-by-step Launchpad guide

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.

The Culturi-S Pro walkthrough covers the same vessel, lid and light as the Standard. The one step that differs is the air: on the Standard, your own pump feeds the 4 mm line.

  • 40 min Setup
  • 5 to 7 days Harvest
  • 1 L Working volume
Open the Culturi-S Pro guide Browse the Launchpad
  1. Set up onceUnbox, fit the rigid tubing, sterilize, prepare your saltwater.5 steps
  2. Every batchFill, fertilize, 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.

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.

An AK Culturi-S vessel kit

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.

View the vessel kit

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, US plug
  • 1x Rigid tubing cleaner
  • 1x Microfiber cleaning cloth
  • 5 ft 4 mm flexible airline tubing

Specifications

Culture volume
1 L (33.8 US fl oz)
Harvest
Up to 1 L every 5 to 7 days
Suits reef tanks to
370 US gal
Dose rate
10 mL per 100 L (26.4 US gal) daily
Light
6 W smart RGB+CCT LED, 520 lm, 3000 to 6500 K
Control
App and voice
Power
US plug, 120 V
Cultures
Phyto, macro-algae
Assembled size, W x L x H
4.2 x 4.2 x 12.3 in
Shipping weight
2.2 lb
Built
Texas, USA
Full product description

The AK Culturi-S Standard is a fully reusable 1-liter phytoplankton reactor that runs on the air pump you already own: no disposable culture bags, no recurring consumable kits. A sealed glass vessel, a tunable smart light, and a 4 mm airline in from your pump.

  • Your own air. Feed it from any 4 mm airline. Filter the line with the AK Air Guard, or run a manifold off one pump and feed a whole row of reactors.
  • Reusable glass vessel. Clean and refill. No bag kits to buy month after month.
  • Smart RGB+CCT LED. Tunable 3000-6500K white plus full RGB, dimmable, app-controlled, Alexa and Google Home ready.
  • Sealed against contamination. Rigid glass tubing through the lid, a pressure-release valve, and seals that stay put.
  • Compact 1L capacity. Sits on a benchtop. Yields enough phyto for a 370 gallon reef at 10 mL per 100 L daily, on a 5 to 7 day harvest cycle.
  • Made in Texas. Manufactured and shipped from the United States.
  • Launchpad guide. We publish every step at the Launchpad: water volume, dosing, lighting schedule, harvest timing, the lot.

Prefer the pump built in? That is the Culturi-S Pro.

1 year warranty

Hassle free, fast replacement for any light 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.

Round it out

Goes well with