Applications · Knowledge hub

Explore the world of microalgae

Practical, honest guides to cultivating microalgae, feeding aquaculture, and understanding the species that power hatcheries and hobby cultures alike.

Aquaculture managers

Optimize live-feed protocols, compare species for your hatchery, and reduce culture crashes with practical, science-grounded guidance.

Hobbyists & home cultivators

Start and scale phytoplankton cultures at home — from copepod feed to planted-tank supplements — without the guesswork.

Researchers & educators

Species profiles, cultivation fundamentals, and honest references — a starting point for teaching and applied algal science.

Bringing it together: the Algaephyte platform

The guides above describe what healthy microalgae need — and how species like Isochrysis, Pavlova and Chaetoceros shift with each hatchery stage. Algaephyte is the cultivation system that puts that into practice: sensors, a physics digital twin, edge-vision contamination detection, and fail-closed dosing. From a bivalve hatchery working stage-specific rations to a hobbyist growing copepod feed, the platform keeps your cultures consistent with less daily guesswork.

See how it works

Algaephyte began as a Spirulina reactor. The questions it kept asking — how does this culture actually behave, what does the model predict, is it safe to act — turned out to be questions about microalgae and phytoplankton generally. This library collects what we have learned and researched: how microalgae are cultivated, how they feed aquaculture from copepods to fish larvae, what each major species is good at, and where the biotechnology goes.

Everything here is written to be useful before it is promotional. Where parameters vary by species or strain, we say so. Where the evidence is thin, we say that too.

Start here

New to microalgae? These three articles cover the basics of feeding copepods, growing your first culture, and understanding stage-specific rations.

Aquaculture and live feeds

How microalgae feed copepods, fish larvae, and shellfish — the practical heart of marine hatchery work.

Illustration of bivalve larvae at different stages swimming among flagellate feed cells

Stage-Specific Algae Rations for Bivalve Larvae

Typical published feed rations for oyster, mussel and clam larvae by stage — Isochrysis, Pavlova and Chaetoceros ratios — and where the Algaephyte platform applies.

Aquaculture8 min read
Illustration of a copepod surrounded by phytoplankton cells of different sizes

How to Feed Copepods With Phytoplankton

Why cultured microalgae make the best copepod feed, which factors actually matter — cell size, density, nutrition — and why different copepod species respond differently.

Aquaculture6 min read
Illustration of a marine fish larva with a yolk sac swimming among phytoplankton cells

How Microalgae Are Used to Feed Marine Fish Larvae

The phytoplankton–zooplankton–fish-larva chain: how live feeds transfer microalgal nutrition to marine fish, and why algae remain important even after first feeding.

Aquaculture7 min read
Illustration of a microscope field of view with six different microalgal species side by side

Best Microalgae for Copepod Culture

Comparing Isochrysis, Pavlova, Nannochloropsis, Tetraselmis and more — cell size, nutrition, ease of culture, and what the comparison actually tells you.

Aquaculture6 min read
Illustration of small golden Isochrysis flagellates with paired flagella

Why Isochrysis Matters in Aquaculture

The role of Isochrysis (and Tisochrysis) as a marine microalgal feed — its lipid and PUFA profile, how it is used, and what the evidence supports.

Aquaculture5 min read
Illustration of Pavlova cells beside a copepod for scale

Pavlova vs Isochrysis for Aquaculture

Similarities and differences in nutritional composition, culture characteristics, and practical applications — without declaring a universal winner.

Aquaculture5 min read
Illustration of the microalgae to zooplankton to fish larvae food chain

How Phytoplankton Supports Aquaculture Food Webs

The progression from microalgae through copepods and rotifers to fish or shellfish larvae — and why the base of the chain matters for hatchery outcomes.

Aquaculture6 min read

Cultivation

Starting, scaling, and protecting microalgae cultures — the skills every cultivator needs.

Species guides

Detailed profiles of the microalgae that matter most in aquaculture, research, and biotechnology.

Illustration of helical Arthrospira trichomes under magnification

Arthrospira (Spirulina)

The helical cyanobacterium known as Spirulina: appearance, culture traits, nutritional profile and major applications.

Species guide6 min read
Illustration of small spherical Chlorella cells

Chlorella

The hardy green sphere: appearance, culture traits, nutritional profile, and its role in aquaculture and nutraceuticals.

Species guide5 min read
Illustration of Pavlova cells beside a copepod for scale

Pavlova

The golden flagellate of marine hatcheries: appearance, culture traits, DHA-rich lipids and practical applications.

Species guide5 min read
Illustration of small golden Isochrysis flagellates with paired flagella

Isochrysis / Tisochrysis

Marine golden-brown flagellates: appearance, culture traits, PUFA profile and aquaculture relevance.

Species guide5 min read
Illustration of tiny spherical Nannochloropsis cells

Nannochloropsis

The tiny green workhorse: appearance, EPA-rich lipids, robustness and why both hatcheries and biotech firms value it.

Species guide5 min read
Illustration of larger Tetraselmis cells with four flagella

Tetraselmis

The larger motile green flagellate with starch and lipid reserves: appearance, culture traits, aquaculture uses and reported antibacterial activity.

Species guide5 min read
Illustration of Dunaliella cells with long flagella in salty water

Dunaliella

The hypersaline green flagellate behind natural beta-carotene: appearance, culture traits, osmotic tricks and commercial uses.

Species guide5 min read
Illustration of Haematococcus cysts turning red with astaxanthin

Haematococcus

The green alga that turns red: appearance, two-stage culture, astaxanthin accumulation, and its role in aquaculture pigmentation.

Species guide5 min read
Illustration of fusiform Phaeodactylum diatom cells

Phaeodactylum

The model marine diatom: fusiform shapes, EPA-rich lipids, fucoxanthin, and why researchers and feed rooms both keep it.

Species guide5 min read
Illustration of a Chaetoceros chain with long setae

Chaetoceros

The chain-forming diatom of bivalve and shrimp hatcheries: appearance, silicate needs, culture traits, and how it fits stage-specific rations.

Species guide5 min read

Biotechnology

The compounds microalgae make and the industries built on them — pigments, lipids, proteins, nutraceuticals.

How Algaephyte supports all of this

Every article above describes what microalgae need — Algaephyte is the platform that delivers it automatically. Here is how the system maps to the cultivation principles in this library.

Sensors & monitoring

Continuous temperature, pH, optical density and dissolved oxygen tracking — the same parameters you monitor manually in How to Grow a Microalgae Culture, captured automatically and logged to the physics twin.

Digital twin prediction

A real-time physics model predicts where the culture is heading — growth trajectory, nutrient depletion, crash risk — so you act before a culture fails, not after.

Contamination vision

Edge-vision cameras flag invaders early — exactly the detection that How to Prevent Contamination describes as the hardest part of manual culture work. Catch it before it spreads.

Fail-closed dosing

Nutrients and pH control gated by deterministic safety rules — no runaway dosing, no open valves on sensor failure. The same safety logic that protects Arthrospira scales to any strain.

If you run a hatchery or culture room and want to talk about a pilot, use the pilot access form. The main page documents the system, and the field notes cover how we actually run cultures day to day.