Ocean Pastures Live Green Phytoplankton - Reef Genetics

Reef Genetics Phytoplankton – Tetraselmis chui

Tetraselmis chui is a green flagellated phytoplankton known for its rich nutritional profile and active swimming behavior. With a slightly larger cell size and strong presence of EPA, amino acids, and vitamins, Tetraselmis supports a wide range of reef organisms—from copepods and rotifers to corals, clams, and filter feeders.

Cultured in-house as part of our Reef Genetics program, it’s harvested fresh and bottled clean to deliver reliable performance across display tanks, refugiums, and home culturing systems.

Key Benefits:

• EPA-Rich Phyto with Amino Acids – Enhances coral coloration and copepod vitality

• Larger Cell Size for Broader Targeting – Great for feeding bivalves, LPS, and larger filter feeders

• Active Swimmer – Naturally stimulates feeding response from inverts and microfauna

• Versatile for Enrichment and Dosing – Ideal for live feed cultures and direct reef nutrition

Dosing Instructions

• Shut off return pumps, protein skimmers, and UV sterilizers for 20 minutes after feeding.

• Can be broadcast fed, drip fed, or target fed.

• Combine with frozen or powdered coral foods for enhanced nutrient delivery.

Available Sizes

TSA Standard Phyto Bottle (8oz):

• Feeds aquariums up to 20–40 gallons

• Suitable for starting home algae cultures up to 10 gallons

TSA Jumbo Phyto Bottle (32oz):

• Feeds aquariums from 50–100 gallons

• Suitable for starting home algae cultures up to 40 gallons

Feeding the rest of the food chain

Phytoplankton feeds copepods, rotifers, clams and filter feeders rather than fish directly. Pair it with live mixed copepods, browse other aquacultured live feeds, or see refugium equipment for culturing at home.