---
product_id: 323881221
title: "Phytoplankton Fertilizer, Guillard's F/2 Formula, 16 fl oz"
brand: "aqua algae"
price: "€ 76.33"
currency: EUR
in_stock: true
category: "Aqua Algae"
url: https://www.desertcart.hr/products/323881221-phytoplankton-fertilizer-guillards-f-2-formula-16-fl-oz
store_origin: HR
region: Croatia
---

# Guillard's F/2 pro formula 470+ L culture yield 100% silicate-free reef safe Phytoplankton Fertilizer, Guillard's F/2 Formula, 16 fl oz

**Brand:** aqua algae
**Price:** € 76.33
**Availability:** ✅ In Stock

## Summary

> 🌊 Cultivate the Ultimate Reef Fuel — Grow More, Spend Less!

## Quick Answers

- **What is this?** Phytoplankton Fertilizer, Guillard's F/2 Formula, 16 fl oz by aqua algae
- **How much does it cost?** € 76.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/323881221-phytoplankton-fertilizer-guillards-f-2-formula-16-fl-oz)

## 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

- • **Economical & Long-Lasting:** Super-concentrated solution means less frequent purchases and more thriving cultures.
- • **Reef-Safe & Silicate-Free:** Keeps your tank free from harmful diatom blooms, ensuring a healthy environment for corals and copepods.
- • **Beginner-Friendly Application:** Simple dosing instructions make cultivating your own live microalgae effortless, even if you’re new to reef keeping.
- • **Scientifically Proven Formula:** Based on Guillard's F/2, delivering essential macronutrients, trace minerals, and vitamins for explosive algae growth.
- • **Maximize Your Microalgae Output:** One 16oz bottle grows over 470 liters of nutrient-rich phytoplankton—unmatched value for your reef.

## Overview

F2 Ferts (16oz) is a professional-grade, concentrated Guillard's F/2 algae fertilizer designed to produce over 470 liters of nutrient-dense phytoplankton culture. Perfect for boosting copepod and coral health, it’s silicate-free to prevent diatom blooms and includes essential vitamins and minerals for rapid algae growth. Ideal for reef enthusiasts seeking an economical, reef-safe, and easy-to-use solution to sustain vibrant aquatic ecosystems.

## Description

desertcart.com : Aqua Algae F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health : Pet Supplies

## 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 |
|---------------|-------|
| ASIN | B08ZYMLQ8G |
| Best Sellers Rank | #33,807 in Pet Supplies ( See Top 100 in Pet Supplies ) #280 in Aquarium Water Treatments |
| Brand | Aqua Algae |
| Brand Name | Aqua Algae |
| Customer Reviews | 4.7 out of 5 stars 159 Reviews |
| Item Form | Liquid |
| Item Weight | 16 ounces |
| Liquid Volume | 16 fluid ounces |
| Manufacturer | Aqua Algae |
| Number of Items | 1 |
| Pet Type | Fish |
| Target Species | Shrimp |
| UPC | 661317842075 |
| Unit Count | 16 Fluid Ounces |

## Product Details

- **Brand:** Aqua Algae
- **Item Form:** Liquid
- **Item Weight:** 16 ounces
- **Liquid Volume:** 16 fluid ounces
- **Unit Count:** 16 Fluid Ounces

## Images

![Phytoplankton Fertilizer, Guillard's F/2 Formula, 16 fl oz - 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 it safe for reef aquariums?**
A: Yes, when used as directed for phytoplankton culture. Not intended for direct addition to aquariums.

**Q: Does this product contain live phytoplankton?**
A: No. This product is a concentrated formula for culturing phytoplankton. It does not contain live phytoplankton.

**Q: What type of lighting is recommended?**
A: Provide bright illumination for 16-24 hours per day. LED or grow lights work well.

**Q: How should I store it?**
A: Store in a cool, dark location. Keep tightly closed.

## 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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**Shop now:** [https://www.desertcart.hr/products/323881221-phytoplankton-fertilizer-guillards-f-2-formula-16-fl-oz](https://www.desertcart.hr/products/323881221-phytoplankton-fertilizer-guillards-f-2-formula-16-fl-oz)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-10-31*