---
product_id: 102328266
title: "Tetraselmis Starter Culture Set - Live Phytoplankton & PhytoPheed Concentrated Guillard's Formula f/2 by Mercer of Montana"
brand: "mercer of montana"
price: "A$130"
currency: AUD
in_stock: true
reviews_count: 8
category: "Mercer Of Montana"
url: https://www.desertcart.com.au/products/102328266-tetraselmis-starter-culture-set-live-phytoplankton-and-phytopheed-concentrated-guillards
store_origin: AU
region: Australia
---

# Pure live Tetraselmis culture Boosts shellfish growth Sterile lab-grade formula Tetraselmis Starter Culture Set - Live Phytoplankton & PhytoPheed Concentrated Guillard's Formula f/2 by Mercer of Montana

**Brand:** mercer of montana
**Price:** A$130
**Availability:** ✅ In Stock

## Summary

> 🌊 Elevate your aquaculture game with pure, potent phytoplankton power!

## Quick Answers

- **What is this?** Tetraselmis Starter Culture Set - Live Phytoplankton & PhytoPheed Concentrated Guillard's Formula f/2 by Mercer of Montana by mercer of montana
- **How much does it cost?** A$130 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/102328266-tetraselmis-starter-culture-set-live-phytoplankton-and-phytopheed-concentrated-guillards)

## Best For

- mercer of montana enthusiasts

## Why This Product

- Trusted mercer of montana brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pure & Potent:** Cultured from petri dish ensuring 100% Tetraselmis, no contaminants
- • **DIY Culture Starter Kit:** Easily inoculate your own thriving phytoplankton culture at home
- • **Coral Vibrancy Amplifier:** Enhances color and health of reef corals and invertebrates
- • **Nutrient-Dense Powerhouse:** High protein, carbs & EPA for exponential livestock growth
- • **Versatile Aquaculture Essential:** Perfect for clams, oysters, rotifers, copepods & more

## Overview

Mercer of Montana’s Tetraselmis Starter Culture Set delivers a sterile, live phytoplankton solution rich in protein, carbohydrates, and EPA, optimized with Guillard's f/2 formula. Ideal for boosting growth and survival rates of shellfish and reef livestock, it ensures vibrant corals and healthy filter feeders. Cultured under strict lab conditions, this 8-ounce liquid culture is your go-to for starting and maintaining a pure, high-density phytoplankton culture.

## Description

PHYTOPLANKTON: Tetraselmis is a beneficial micro algae found throughout the world’s oceans. This live phytoplankton has been cultured from a petri dish, using Hydro Algal Fertilizer with the industry-standard Guillard f/2 medium formula for greater density and longer viability. By culturing directly from a petri dish, you can be assured that you have only Tetraselmis, and not a mixture of various types of microalgae. The genus Tetraselmis is widely accepted as the standard for reef keeping aquarists to promote the growth and vibrancy of many corals, clams, shrimp, invertebrates, and other filter feeder livestock. At Mercer of Montana, we adhere to the highest standards of sterile laboratory protocols, to ensure that each bottle of dense, vitamin rich phytoplankton is contaminant-free. The salinity of the phytoplankton you receive has been cultured at a specific gravity of 1.020. To inoculate your own phytoplankton culture, combine phytoplankton with saltwater (1.018-1.020 sg) at an equal rate (1:1). Add Hydro Algal Fertilizer at a rate of 1.0ml per liter. Warning: Not recommended for human consumption. Filtering during the bottling process assures you’re adding the highest level of purity to your livestock and saltwater. HYDRO ALGAL FERTILIZER Guillard’s f/2 formula in an 8 ounce bottle. Contains: Vitamins B12, Thiamin, and Biotin, to ensure a proper balance for maximum health. Other Ingredients: Cupric Sulfate, Zinc Sulfate, Cobalt Chloride, Sodium Ferric Ethylendiaminetetraacetate (EDTA), Manganese Chloride, Sodium Molydate, Sodium Nitrate, and Sodium Phosphate.

Review: This phyto is green - Already split culture and it was nice and dark green. This is going to save me a lot of money by culturing myself, which is super easy. Great product.
Review: Always alive and ready for ur tank or culturing - This is after culturing it /I use it for my feed my pod that I also culture worth the money just wish they had phyto only and not the kits

## Features

- Great for Clams, Oysters, Artemia, Rotifers, Copepods, & Mussels
- High Levels of Protein, Carbohydrates and EPA, to Assure Better Nutrition, Exponential Growth, and Higher Survival Rates of Livestock
- Enhances Vibrancy of Corals
- Great for Starting Your Own Culture!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MYFWXFN |
| Best Sellers Rank | #220,725 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,709 in Aquarium Water Treatments |
| Brand | Mercer of Montana |
| Date First Available | January 20, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 8 ounces |
| Liquid Volume | 1 Liters |
| Manufacturer | Mercer of Montana |
| Package Dimensions | 9 x 9 x 3 inches |
| Unit Count | 1.00 Count |

## Product Details

- **Brand:** Mercer of Montana
- **Item Form:** Liquid
- **Item Weight:** 8 Ounces
- **Liquid Volume:** 1 Liters
- **Manufacturer:** Mercer of Montana

## Images

![Tetraselmis Starter Culture Set - Live Phytoplankton & PhytoPheed Concentrated Guillard's Formula f/2 by Mercer of Montana - Image 1](https://m.media-amazon.com/images/I/81kIcMvFkyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This phyto is green
*by A***R on February 16, 2022*

Already split culture and it was nice and dark green. This is going to save me a lot of money by culturing myself, which is super easy. Great product.

### ⭐⭐⭐⭐⭐ Always alive and ready for ur tank or culturing
*by R***Y on November 28, 2022*

This is after culturing it /I use it for my feed my pod that I also culture worth the money just wish they had phyto only and not the kits

### ⭐⭐⭐ Culture Crashed, Clumps To Blame?
*by L***A on June 1, 2025*

Cultures came when they said they would. Packaged well. I noticed large particles in both bottles that did not dissolve with shaking. Since I am new to phytoplankton culturing I used them both anyway assuming it was just clumps of phyto. Day two both cultures crashed. Could it have been me? Sure. Maybe bad cultures, maybe. Hard to say. I am still using the fertilizer so I hope that's not where the contamination was because I used it on my new culture which is so far doing great. Fingers crossed.

## Frequently Bought Together

- Tetraselmis Starter Culture Set - Live Phytoplankton & PhytoPheed Concentrated Guillard's Formula f/2 by Mercer of Montana
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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-25*