---
product_id: 727010833
title: "PhytoPheed - Mercer of Montana's Concentrated Guillard's Formula f/2 (16oz f/2)"
brand: "mercer of montana"
price: "€ 38.42"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mercer Of Montana"
url: https://www.desertcart.fr/products/727010833-phytopheed-mercer-of-montanas-concentrated-guillards-formula-f-2-16oz
store_origin: FR
region: France
---

# Extended shelf life, long-lasting Maximizes phytoplankton cell density 30+ years proven f/2 formula PhytoPheed - Mercer of Montana's Concentrated Guillard's Formula f/2 (16oz f/2)

**Brand:** mercer of montana
**Price:** € 38.42
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquatic feed game with the gold standard in microalgae nutrition!

## Quick Answers

- **What is this?** PhytoPheed - Mercer of Montana's Concentrated Guillard's Formula f/2 (16oz f/2) by mercer of montana
- **How much does it cost?** € 38.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/727010833-phytopheed-mercer-of-montanas-concentrated-guillards-formula-f-2-16oz)

## 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

- • **Silicate-Free Purity:** No silicates means cleaner cultures and healthier aquatic environments.
- • **High-Density Cultures:** Achieve peak cell densities for continuous or batch microalgae growth—feed your aquatic ecosystem like a pro.
- • **Trusted Growth Medium:** Leverage 30+ years of Guillard's f/2 formula excellence for unbeatable microalgae cultures.
- • **Boost Your Fry's Nutrition:** Pre-load essential vitamins into phytoplankton to supercharge your fish fry’s development.
- • **Effortless Dosing & Longevity:** 1ml per liter dosing with an 8oz bottle that lasts—maximize efficiency and minimize hassle.

## Overview

Mercer of Montana's PhytoPheed Concentrated Guillard's Formula f/2 is a premium, silicate-free microalgae growth medium trusted for over 30 years. Designed to maximize phytoplankton cell density and pre-load essential vitamins for fish fry nutrition, this 16oz formula offers extended shelf life and easy dosing, making it a must-have for professional aquarists and hatcheries aiming for optimal aquatic health and growth.

## Description

Mercer Of Montana has concentrated the Guillard f/2 formula to help you achieve high density, continuous or batch cultures of micro algae for your fish fry, rotifer and artemia feed, or to dose to your aquarium system. Hydro Algal Fertilizer, Phyto Pheed, has an extended shelf life, and using the suggested dosing of 1ml/liter, one 8 ounce bottle will last.

Review: Muy buen producto - Excelente
Review: As described - Works great!

## Features

- Guillard's f/2 formula growth medium standard for over 30 years
- Essential to pre-loading vitamins into phytoplankton prior to feeding fry
- Promotes the highest cell densities in your phytoplankton culture
- Contains no silicates

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DP5CM85T |
| ASIN  | B0DP5CM85T |
| Best Sellers Rank | #63,902 in Pet Supplies ( See Top 100 in Pet Supplies ) #609 in Aquarium Water Treatments |
| Brand Name | Mercer of Montana |
| Customer Reviews | 4.5 4.5 out of 5 stars (89) |
| Date First Available | February 18, 2016 |
| Date First Available  | February 18, 2016 |
| Directions | Use 1ml per liter of water. No additional details provided. |
| Included Components | f/2 and sterile dosing syringe and cap |
| Item Weight | 8 Ounces |
| Item Weight  | 8 ounces |
| Manufacturer | Mercer Of Montana, LLC |
| Manufacturer  | Mercer Of Montana, LLC |
| Number of Items | 1 |
| Size | 16oz f/2 |

## Product Details

- **Brand:** Mercer of Montana
- **Item Form:** Liquid
- **Item Weight:** 8 Ounces
- **Liquid Volume:** 8 Fluid Ounces
- **Manufacturer:** Mercer Of Montana, LLC

## Images

![PhytoPheed - Mercer of Montana's Concentrated Guillard's Formula f/2 (16oz f/2) - Image 1](https://m.media-amazon.com/images/I/314bTLLkzIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Muy buen producto
*by H***Z on November 17, 2025*

Excelente

### ⭐⭐⭐⭐⭐ As described
*by C***T on January 8, 2025*

Works great!

### ⭐⭐⭐⭐⭐ This is a great product to culture microalgae
*by S***G on August 3, 2018*

This is a great product to culture microalgae. In the past I've used Miracle Gro with mostly failure where the culture would completely crash relatively quickly. This nannochloropsis culture got dark quickly and has remained alive for more than a 3 weeks now, there's a power head in there that you cant even see anymore.

## Frequently Bought Together

- PhytoPheed - Mercer of Montana's Concentrated Guillard's Formula f/2 (16oz f/2)
- Nannochloropsis Phytoplankton (16oz) Cultured by Mercer of Montana

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-24*