Microalgal Omega-3 for Aquaculture

Fish-free omega-3, built for shellfish hatcheries.

AccessFlora grows a whole-cell, DHA-rich microalga as a pure culture in closed, sterile bioreactors — sealed off from the ocean, wild algae, and other shellfish — and delivers it as a ready-to-use concentrate. Clean, reliable nutrition for oyster, clam, and shrimp hatcheries, without depending on wild fish or fragile live cultures.

Whole-cell DHAPure cultureReady to useFish-free
The Product

A ready-to-use whole-cell
omega-3 concentrate.

We ferment our own proprietary marine microalga — one that naturally makes DHA its dominant omega-3 — and harvest the whole cells into a liquid concentrate. Nothing is extracted or solvent-refined: the oil stays packaged inside the cell, the way filter feeders find it in nature.

AccessFlora microalgae cells under a microscope, golden with stored DHA oil and carotenoids
Our microalgae under the microscope. The golden color is stored DHA omega-3 oil and carotenoids.
FormatWhole-cell liquid concentrate
Concentration8% total solids
Sold byThe gallon
Grown inClosed, sterile bioreactors

Saves hatchery time

No inoculating, culturing, counting, or harvesting. Measure, dilute, and feed — and put the hours back into your animals.

No-risk feeding

A shelf-ready feed that can't crash overnight. Use it to supplement or back up your live algae, and keep feeding on schedule.

Clean from the start

Grown as a pure culture in sealed, sterile vessels — never in contact with open water, wild algae, or other shellfish.

Applications

Starting where omega-3 matters most: the hatchery.

Shellfish hatcheries are our first market — filter-feeding larvae take up whole cells directly, so there's no extraction step between our bioreactor and your tanks.

Now · In use

Bivalve hatcheries

Oyster and clam larvae filter particles straight from the water column. Our whole-cell concentrate gives them a direct DHA source alongside — or partially in place of — the live algae you already grow.

  • Larval rearing and setting
  • Broodstock conditioning ahead of spawning
  • Nursery and upweller supplementation
  • Backup feed when live cultures underperform
An oyster raised on AccessFlora feed, shucked on the half shell
Next · Pilots 2027

Shrimp hatcheries

Penaeid larvae pass through algae-feeding stages before moving to live and formulated feeds. DHA supports development, stress tolerance, and post-larval quality.

  • Zoea and mysis stage algal feeding
  • Broodstock maturation diets
  • Biomass ingredient for hatchery and nursery feeds
  • Pilot partnerships planned in Ecuador
Next · In development

Rotifer & Artemia enrichment

Live prey are only as nutritious as what they eat. Feeding DHA-rich microalgae to rotifers and Artemia before they go to the larval tanks is a standard way to raise their omega-3 content.

  • Pre-harvest enrichment of rotifers
  • Artemia nauplii enrichment
  • Fish-free alternative to oil emulsions
Later · Platform expansion

Finfish feed and new markets

The same fermentation platform scales beyond the hatchery. Through university research partnerships we're working toward omega-3 inputs for salmon and finfish feeds — and longer term, livestock, pet, and food applications where fish oil isn't a fit.

  • Salmon and marine finfish feed (research partnership)
  • Livestock omega-3 supplementation
  • Plant-based and dairy food ingredients
Eastern oysterPacific oysterHard clam / quahogBay scallopBlue musselWhiteleg shrimpRotifersArtemia

Working with a species that isn't listed? Tell us about your hatchery.

Feeding Guide

How it fits into your feed program.

Dose to the animals you're feeding, then check it against your tank volume. All rates are daily starting points in mL of concentrate — split them across two or more feedings and adjust to clearance and growth.

Light

Supplement. Fed alongside your live algae — about half of a full daily ration by dry weight.

Heavy

Full ration. Covers the whole daily algae ration by dry weight — for backup feeding or when live cultures are down.

Dose calculator

Light
–
Heavy
–

mL of concentrate per day. Pre-dilute about 10:1 in system water before adding.

StageBasisLight (mL/day)Heavy (mL/day)
Broodstockper gram wet meat weight0.015 – 0.030.03 – 0.06
Broodstockper adult0.15 – 0.60.3 – 1.2
Seed / spatper gram live weight0.350.7
Seed, 0.3 mmper million3.57
Seed, 0.5 mmper million2550
Seed, 1 mmper million107214
Seed, 2 mmper million8001,600
Seed, 3 mmper million2,4504,900

Why mL per 1,000 L? Per-liter doses are small fractions of a milliliter, so we express tank-level rates per 1,000 L. Each 1 mL of concentrate adds about 80 mg of dry cells.

Larvae and other species. Larval rates depend on species, stage, and stocking density — we'll set them with you when you start feeding.

“

Why this microalga? Many omega-3 sources deliver a mix of fats. Our strain makes DHA its dominant long-chain omega-3, with little else competing for space — the fatty acid larvae need most during early development. And because we feed the whole cell rather than an extracted oil, that DHA reaches your larvae still protected inside the cell membrane.

The Bigger Picture

A replacement for fish oil, proven one hatchery at a time.

Most of the world's omega-3 still comes from small wild fish. As aquaculture grows, that supply can't keep up. Fermented microalgae make DHA at the source — the same place fish get it in the first place.

Takes the fish out of the chain

Fish don't make omega-3s — they accumulate them from algae. We skip the middle step and grow the algae directly.

Independent of season and ocean

Fermentation runs year-round, in any climate, close to customers — not tied to a single fishery half a world away.

One platform, many markets

Hatcheries are the beachhead. The same organism and process point toward aquafeed, animal nutrition, and food ingredients.

Where We Are

Scaling from lab to hatchery.

Our feed is already raising oysters, and production is scaling to supply more hatcheries.

Done

Strain & process

Proprietary strain isolated and characterized; cultivation scaled from 1 L bottles to 1,000 L vessels.

Now

Raising oysters

Oysters in a commercial aquaculture facility are being raised on our product today.

Next

More hatcheries

Expanding supply to bivalve hatcheries in New England and Atlantic Canada, then shrimp pilots in Ecuador in 2027.

Later

Broader aquafeed

Finfish feed applications and certified food-grade ingredient lines from the same platform.

K
Keegan Jalbert, founder of AccessFlora, lifting a bag of oysters raised on AccessFlora feed
About AccessFlora

Started in the hatchery. Built in the lab.

I'm Keegan Jalbert. I learned about different aquaculture practices from Australia, Ecuador, and Connecticut, and I found the same problem exists everywhere: seafood around the world depends on a fragile, wild source of omega-3.

So I isolated and bred a DHA-producing microalga and built a fermentation process around it with the University of Connecticut. AccessFlora's mission is simple: give hatcheries a reliable, fish-free omega-3 they can plan around — and grow that platform into a real alternative to fish oil.

Proven in our own oysters. Our SureSweet line conditions oysters on this feed as a working demonstration of the product. See SureSweet →

Get in Touch

Let's talk about your hatchery.

The best starting point is a conversation about your species, your current feed program, and what you'd like to improve. Get in touch to start feeding.

We'll only use your details to follow up on your inquiry and share product updates.