---
product_id: 340798529
title: "8oz Concentrated Guillard's F2 Formula"
brand: "aqua algae"
price: "Rp831773"
currency: IDR
in_stock: true
reviews_count: 8
category: "Aqua Algae"
url: https://www.desertcart.id/products/340798529-8oz-concentrated-guillards-f2-formula
store_origin: ID
region: Indonesia
---

# supports 230+ liters of culture 8oz ultra-concentrated formula scientifically proven Guillard's F/2 8oz Concentrated Guillard's F2 Formula

**Brand:** aqua algae
**Price:** Rp831773
**Availability:** ✅ In Stock

## Summary

> 🌊 Fuel your reef’s future with the pro-grade algae growth secret!

## Quick Answers

- **What is this?** 8oz Concentrated Guillard's F2 Formula by aqua algae
- **How much does it cost?** Rp831773 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/340798529-8oz-concentrated-guillards-f2-formula)

## 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 & Efficient:** One 8oz bottle makes over 230 liters of full-strength culture medium—max ROI for reef care.
- • **Grow Your Own Pod Food:** Cut costs and cultivate endless nutrient-rich phytoplankton at home.
- • **Beginner-Friendly Usage:** Simple dosing instructions make cultivating live microalgae effortless for pros and newbies alike.
- • **Reef-Safe & Silicate-Free:** Lab-grade purity prevents harmful diatom blooms, keeping your reef ecosystem thriving.
- • **Scientifically Backed Formula:** Trusted Guillard's F/2 with essential vitamins and minerals for explosive algae growth.

## Overview

The 8oz Concentrated Guillard's F2 Formula is a premium, lab-grade liquid solution designed to cultivate nutrient-dense phytoplankton cultures. It supports over 230 liters of culture medium per bottle, uses the scientifically validated Guillard's F/2 recipe enriched with essential vitamins and minerals, and is silicate-free to ensure reef safety. Ideal for marine hobbyists seeking an economical, effective, and easy-to-use algae growth booster for copepods, rotifers, and corals.

## Description

This is a commonly used enrichment solution used in the culture of marine phytoplankton.High in essential vitaminsStimulateshigh concentration phytoplankton culturesContains no silicatesDirections:Simply add 1 ml to 1 L (2 ml to a 2 L pop bottle) of fresh saltwater at to 1.019 s.g., add your starter culture and light to 16 hours per day. A 8 oz bottle is enough for approximately 240 liters at f2 concentration!Keep in a cool, dark area and shake prior to use.

Review: Good for Pyrocystis - Used this to culture some Pyrocystis/bioluminescent dinoflagellates and its working well, the new cultures I made with the ferts are vigorous and healthy. Not sterile so take some caution but that's easy enough to overcome.
Review: The good stuff - This will grow yoir culture correctly. Don't substitute!!

## Features

- GROW YOUR OWN "POD" FOOD: Stop overpaying for small, short-lived bottles of phytoplankton. 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.
- ULTRA-CONCENTRATED 8oz BOTTLE: A little goes a long way. This 8oz (236mL) bottle is enough to make over 230 liters (60+ gallons) of full-strength culture medium. It's the most economical way to support a thriving reef ecosystem.
- 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 | B08ZYGBGPQ |
| Best Sellers Rank | #24,613 in Pet Supplies ( See Top 100 in Pet Supplies ) #220 in Aquarium Water Treatments |
| Brand | Aqua Algae |
| Brand Name | Aqua Algae |
| Customer Reviews | 4.6 out of 5 stars 123 Reviews |
| Item Form | Liquid |
| Liquid Volume | 8 Fluid Ounces |
| Manufacturer | Aqua Algae |
| Target Species | Fish, Marine Invertebrates |
| UPC | 661317842068 |
| Unit Count | 8.00 Fluid Ounces |

## Product Details

- **Brand:** Aqua Algae
- **Item Form:** Liquid
- **Liquid Volume:** 8 Fluid Ounces
- **Manufacturer:** Aqua Algae
- **UPC:** 661317842068

## Images

![8oz Concentrated Guillard's F2 Formula - Image 1](https://m.media-amazon.com/images/I/51j7a1wKp4L.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 for Pyrocystis
*by P***N on March 16, 2026*

Used this to culture some Pyrocystis/bioluminescent dinoflagellates and its working well, the new cultures I made with the ferts are vigorous and healthy. Not sterile so take some caution but that's easy enough to overcome.

### ⭐⭐⭐⭐⭐ The good stuff
*by B***D on April 20, 2026*

This will grow yoir culture correctly. Don't substitute!!

### ⭐⭐⭐⭐⭐ 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!

## Frequently Bought Together

- Aqua Algae 8oz Concentrated Guillard's F2 Formula
- uxcell 2pcs Clear Rigid Tubing 18mm(11/16'') ID x 20mm(3/4'') OD x 1Ft Length Round Plastic Polycarbonate Tube

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-07-03*