a close up of a red and green substance

The Ultimate Resource for Live Phytoplankton and Algae Cultivation

We provide optimized phytoplankton for filter feeders from copepods to bivalve larvae for maximum growth and health.

Orr Biologicals is also a repository for guides on how to cultivate your own microalgae at home for various applications.

tisochrysis, premium phytoplankton strain
tisochrysis, premium phytoplankton strain

About our Phytoplankton Blends

Axenic Cultures- 100% Contamination Free
Lipid Enhancement- Superior Quality Phytoplankton Cultures
Optimal Density and Nutrition- Feed with confidence
Science Backed- Whether from our trials or ScienceDirect articles, we ensure we provide the best
Custom Ratios Tailored to your Stock- We provide backed phytoplankton ratios to ensure your copepods are getting what they need.

Here at Orr Biologicals, we formulate high quality mixtures of marine phytoplankton tailored to copepods and bivalve larvae. These are optimized with laboratory data in our blog posts and other research avenues.

Microalgae are organisms that we believe should be accessible to everybody. We give advice on how to cultivate microalgae including edible ones like Spirulina to regular phytoplankton for your reef. We also sell equipment needed to do this at home.

Our Mission

Check out our YouTube channel!

We show guides on growing edible microalgae and managing our products.

Orr Biologicals - YouTube

close up of spirulina
close up of spirulina