---
product_id: 323881221
title: "F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health"
brand: "aqua algae"
price: "329 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Aqua Algae"
url: https://www.desertcart.ro/products/323881221-f2-ferts-16oz-concentrated-guillards-f-2-formula-for-phytoplankton
store_origin: RO
region: Romania
---

# Guillard's F/2 pro formula 470+ L culture capacity 100% silicate-free reef safe F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health

**Brand:** aqua algae
**Price:** 329 Lei
**Availability:** ✅ In Stock

## Summary

> 🌊 Cultivate the Future of Reef Health—Grow More, Waste Less!

## Quick Answers

- **What is this?** F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health by aqua algae
- **How much does it cost?** 329 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/323881221-f2-ferts-16oz-concentrated-guillards-f-2-formula-for-phytoplankton)

## Best For

- aqua algae enthusiasts

## Why This Product

- Trusted aqua algae brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reef-Safe & Silicate-Free:** Protect your delicate ecosystem by avoiding harmful diatom blooms with this pure, lab-grade solution.
- • **Scientifically Proven Formula:** Based on Guillard's F/2 standard, packed with essential macronutrients and vitamins for explosive algae growth.
- • **Super-Concentrated 16oz Bottle:** One bottle yields over 470 liters of nutrient-rich culture medium—economy meets efficiency.
- • **Beginner-Friendly & Easy to Use:** Clear instructions make cultivating high-density phytoplankton effortless, even for newcomers.
- • **Grow Your Own Endless 'Pod' Food:** Maximize value with a concentrated formula that fuels thriving copepod and coral populations.

## Overview

F2 Ferts (16oz) is a professional-grade, concentrated Guillard's F/2 formula designed for cultivating nutrient-dense phytoplankton cultures like Nannochloropsis and Tetraselmis. This silicate-free, reef-safe liquid fertilizer supports copepod and coral health by providing essential macronutrients, trace minerals, and vitamins. One bottle can produce over 470 liters of culture medium, making it an economical and scientifically validated choice for reef tank enthusiasts and marine biologists alike.

## Description

This is a commonly used enrichment solution used in the culture of marine phytoplankton.High in essential vitaminsStimulates high concentration phytoplankton culturesContains no silicatesDirections: Simply add 1 ml to 1 L (2 ml to a 2 L pop bottle) of fresh saltwater at ~1.019 s.g., add your starter culture and light ~16 hours per day. A 16 oz bottle is enough for approximately 480 liters at f/2 concentration! Keep in a cool, dark area and shake prior to use.

Review: Good Product - Works like a charm
Review: My chlorella vulgaris is blowing up in density! - This stuff has helpled my chlorella vulgaris culture grow wonderfully! And its sheer size could last me multiple decades based on my math (which hopefully isn’t flawed)! Overall, wonderful product! Would recommend for any phytoplankton or algae culture!

## Features

- GROW YOUR OWN "POD" FOOD (DOUBLE THE VALUE): Stop overpaying for small, short-lived phytoplankton bottles. Our concentrated F/2 formula is the secret to easily growing your own endless, nutrient-dense supply of live microalgae to feed your copepods, rotifers, and corals. This 16oz size offers even greater savings per liter!
- SUPER-CONCENTRATED 16oz BOTTLE: A little goes a very long way. This generous 16oz (473mL) bottle is enough to make over 470 liters (124+ gallons) of full-strength culture medium. It's the most economical way to support a thriving reef ecosystem and keep your cultures booming!
- THE PROFESSIONAL STANDARD (GUIL-LARD'S F/2): Don't guess with your fertilizer. Our solution is based on the scientifically proven Guillard's F/2 formula, containing all essential macronutrients, trace minerals, and vitamins (B1, B12, Biotin) for explosive algae growth.
- SILICATE-FREE & REEF SAFE: Brewed with pure, lab-grade ingredients. This formula is 100% silicate-free, so it won't trigger a diatom (brown algae) bloom in your display tank. It's completely safe for all reef inhabitants when used as directed.
- EASY TO USE FOR BEGINNERS: Includes clear, simple instructions. Just add 1mL per 1 Liter (or 2mL to a standard 2L pop bottle) of new saltwater, add your starter culture, and provide light. Shake well before each use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Aqua Algae |
| Customer Reviews | 4.7 out of 5 stars 109 Reviews |
| Item Form | Liquid |
| Item Weight | 16 Ounces |
| Manufacturer | Aqua Algae |
| UPC | 661317842075 |

## Product Details

- **Brand:** Aqua Algae
- **Item Form:** Liquid
- **Item Weight:** 16 Ounces
- **Manufacturer:** Aqua Algae
- **UPC:** 661317842075

## Images

![F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health - Image 1](https://m.media-amazon.com/images/I/51T-gQ0o8UL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is 1ml for each Liter accurate? Isn’t f/2 generally 1ml per every 2L?**
A: I do 1ml per then add an extra ml at the end

**Q: What exactly is in this?**
A: Hi,

The ingredients include water, sodium nitrate, sodium phosphate, iron chloride, sodium EDTA, copper sulfate, zinc sulfate, sodium molybdate, cobalt chloride, manganese chloride, thiamine, biotin, and cyanocobalamin. 

Thanks!

**Q: Store on shelf or in refrigerator?**
A: On shelf

**Q: When will stock be available ?**
A: The 16oz and 32oz are currently in stock and the 8oz should be back in stock in a couple days.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Product
*by A***. on December 9, 2025*

Works like a charm

### ⭐⭐⭐⭐⭐ My chlorella vulgaris is blowing up in density!
*by A***S on November 7, 2025*

This stuff has helpled my chlorella vulgaris culture grow wonderfully! And its sheer size could last me multiple decades based on my math (which hopefully isn’t flawed)! Overall, wonderful product! Would recommend for any phytoplankton or algae culture!

### ⭐⭐⭐⭐⭐ Concentrrated.
*by R***A on January 24, 2026*

I find this formula of F2 to be nicely concentrated. The amount to add to a culture, per their instructions, has worked well for me with my Nannochloropsis algae.

## Frequently Bought Together

- Aqua Algae 16oz Concentrated Guillard's F/2 Formula for Marine Phytoplankton Cultivation, Aquaculture, Reef Tanks, 16 ounces
- North Mountain Supply 1 Gallon Glass Jar Wide Mouth with Black Plastic Lid - USDA, BPA-Free, Made in the USA - for Fermenting, Storing, Canning, and Much More!
- The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate 12 fl oz (350ml)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-11*