---
product_id: 677181055
title: "The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate (16.9 fl oz (500ml))"
brand: "the coral ranch"
price: "€ 230.98"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/677181055-the-coral-ranch-guillards-f-2-formula-microalgae-fertilizer-concentrate
store_origin: NL
region: Netherlands
---

# High-density microalgae boost Optimal 500ml concentrated formula Proudly USA-made quality The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate (16.9 fl oz (500ml))

**Brand:** the coral ranch
**Price:** € 230.98
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquatic world with the ultimate microalgae boost!

## Quick Answers

- **What is this?** The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate (16.9 fl oz (500ml)) by the coral ranch
- **How much does it cost?** € 230.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/677181055-the-coral-ranch-guillards-f-2-formula-microalgae-fertilizer-concentrate)

## Best For

- the coral ranch enthusiasts

## Why This Product

- Trusted the coral ranch brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **No Fuss, No Batteries:** Ready-to-use liquid concentrate—simple, clean, and efficient.
- • **Eco-Conscious & USA-Made:** Support sustainable, locally manufactured products with trusted quality control.
- • **Generous 500ml Concentrate:** Long-lasting supply designed for full coverage and consistent results.
- • **Microalgae Growth Powerhouse:** Supercharge your aquatic ecosystems with nutrient-rich phytoplankton fertilizer.
- • **Precision-Formulated f/2 Formula:** Scientifically crafted for maximum microalgae density and vitality.

## Overview

The Coral Ranch Guillard's F/2 Formula Microalgae Fertilizer Concentrate is a 500ml USA-made liquid fertilizer designed to enhance microalgae growth with a scientifically optimized nutrient blend. Ideal for professional aquatic cultivation, it delivers high-density phytoplankton cultures without any complicated setup or power requirements.

## Description

Product description          F/2 Guillard’s Formula Microalgae Fertilizer Concentrate The Coral Ranch's F/2 Microalgae Fertilizer is a specially formulated nutrient solution designed to foster the healthy growth of phytoplankton using Guillard's proven formula. Derived from high-quality ingredients, this fertilizer provides the essential nutrients, vitamins and trace elements necessary for robust phytoplankton growth. The Coral Ranch’s F/2 Microalgae Fertilizer is your reliable choice for achieving high density phytoplankton cultures. Directions: Add 4ml per us gallon of freshly mixed saltwater to achieve f/2 concentration. Shake well before using. Storage: Store in a cool, dry place away from direct sunlight. Warning: Not for human consumption. Keep out of reach of children and pets. Avoid contact with eyes and skin. In case of contact, rinse thoroughly with water. If ingested accidentally, seek medical attention immediately.             Directions          Add 4ml per us gallon of freshly mixed saltwater to achieve f/2 concentration. Shake well before using. Store in a cool, dry place away from direct sunlight. Warning: Not for human consumption. Keep out of reach of children and pets. Avoid contact with eyes and skin. In case of contact, rinse thoroughly with water. If ingested accidentally, seek medical attention immediately.             
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                     Safety Warning          Not for human consumption. Keep out of reach of children and pets. Avoid contact with eyes and skin. In case of contact, rinse thoroughly with water. If ingested accidentally, seek medical attention immediately.           See more

## Features

- Phytoplankton Fertilizer
- Guillard's f/2 Formula
- Manufactured in the USA
- High density Phytoplankton Cultures

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | The Coral Ranch |
| Part number | 1 |
| Item Weight | 236 g |
| Item model number | f/2 10 fl oz |
| Size | 16.9 fl oz (500ml) |
| Cutting Diameter | 2.2 Inches |
| Coverage | Full |
| Specific uses | Microalgae Growth |
| Included components | Microalgae Fertilizer |
| Batteries Required? | No |
| Item diameter | 2.2 Inches |

## Product Details

- **Brand:** The Coral Ranch
- **Liquid volume:** 10 Fluid Ounces
- **Item weight:** 236 Grams
- **Item form:** Liquid
- **Target species:** Aquatic Plants, Invertebrates

## Images

![The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate (16.9 fl oz (500ml)) - Image 1](https://m.media-amazon.com/images/I/518agEUXGPL.jpg)
![The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate (16.9 fl oz (500ml)) - Image 2](https://m.media-amazon.com/images/I/51vwIcuxAkL.jpg)
![The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate (16.9 fl oz (500ml)) - Image 3](https://m.media-amazon.com/images/I/61DYoQfXdqL.jpg)
![The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate (16.9 fl oz (500ml)) - Image 4](https://m.media-amazon.com/images/I/617aGkkRw7L.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.nl/products/677181055-the-coral-ranch-guillards-f-2-formula-microalgae-fertilizer-concentrate](https://www.desertcart.nl/products/677181055-the-coral-ranch-guillards-f-2-formula-microalgae-fertilizer-concentrate)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-25*