Name: 1L Live Spirulina Starter Culture
SKU: 682
Availability: InStock

Start with a robust volume and harvest sooner

This is the 1 litre culture-only option for growers who want a serious head start. You get a full litre (or more if you want to get really serious) of active, lab-verified spirulina — twice the living biomass of our 500ml starter — which means your tank establishes faster, tolerates early mistakes better, and hits harvestable volume weeks sooner. If you already know how to mix your own nutrients, or you’re restocking an existing setup, this is the most efficient way to get a thriving culture running.

What’s in the box

1 Litre Live Spirulina Culture — purity verified, packed fresh
Step-by-Step Growing Manual — setup, maintenance, harvesting, troubleshooting
Replacement Culture Guarantee — if it doesn’t arrive thriving, we replace it
Direct email support — stuck? We actually answer

Why buy Australian

Imported cultures get seized by quarantine or die in transit. We ship express from Perth — no biosecurity paperwork, no roulette. You get a living culture that arrives ready to work.

Why fresh beats powder every time

Live spirulina retains 100% of its phycocyanin, B vitamins, and antioxidants — nutrients that degrade within hours of processing. The taste is mild and smooth, not gritty and fishy. And at a few minutes of care per day, it’s the lowest-effort superfood you’ll ever produce

What Growers Say

“I purchased 500ml of Spirulina from Ken at Spirulina Grow Co. I am so impressed with his extraordinary after-sales service I felt compelled to write an endorsement. Ken really does go the extra mile in ensuring that you will be a successful Spirulina grower. He was more than willing to answer all my questions, his knowledge and experience is most impressive. I can thoroughly recommend Spirulina Grow Co, you will not be disappointed.”

— Stephen F, Adelaide

Frequently Asked Questions

How much spirulina will this make? 500ml is a robust starter volume. Once established in your tank and given proper nutrients, it’ll multiply rapidly. Most growers move to a 100 litre working volume within 5 – 6 weeks.

What if my culture dies in transit? Express shipping is included to prevent this. If your culture arrives unhealthy, we’ll replace it. We’ve shipped hundreds of cultures across Australia with a near-perfect arrival rate.

Does this include nutrients? No — this is the culture only. You’ll need your own starter nutrient formulation. If you want nutrients included, see our 500ml Live Spirulina Culture & Fast Grow Starter Nutrient Pack.

How long until I can start harvesting? You can start increasing your culture immediately. First proper harvests usually happen around week 5-6, depending on your nutrient mix, light, and temperature.

Do I need special equipment? A clear container, an aquarium air pump + tubes, and an aquarium heater if you are growing in cold conditions. We outline setup options in the manual.

How much daily care does this need? Less than five minutes. You check the basic conditions. Check that the bubbler tubes are affixed and the bubbles are doing their job, top up for evaporation, check on color and termperature.

What does fresh spirulina taste like? Nothing like powder. Fresh spirulina is smooth, mild, and slightly earthy — easy to blend into smoothies or juice. The “fishy” reputation comes from degraded, oxidised powder.