Is 1ml for each Liter accurate? Isn’t f/2 generally 1ml per every 2L?

I do 1ml per then add an extra ml at the end

What exactly is in this?

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!

When will stock be available ?

The 16oz and 32oz are currently in stock and the 8oz should be back in stock in a couple days.

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F2 Ferts (8oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health*

Product ID: 340798529

Details

Brand
Aqua Algae
Item Form
Liquid
Liquid Volume
8 Fluid Ounces
Manufacturer
Aqua Algae
Unit Count
8.00 Fluid

🌿Supports 230+ liters of culture

🧪8oz ultra-concentrated formula

🧬Scientifically proven Guillard's F/2

$45.45

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Description

🌊 Cultivate the future of your reef—one drop at a time!

ECONOMICAL EFFICIENT - One 8oz bottle yields over 230 liters of full-strength culture medium—max ROI for your reef.
BEGINNER FRIENDLY SETUP - Simple dosing and clear instructions make thriving phytoplankton cultures accessible to all.
REEF SAFE SILICATE FREE - Lab-grade purity prevents harmful diatom blooms, keeping your ecosystem balanced.
SCIENTIFICALLY BACKED FORMULA - Trusted Guillard’s F/2 with essential vitamins and minerals for explosive algae growth.
GROW YOUR OWN NUTRIENT POWERHOUSE - Stop overpaying—create endless live microalgae to fuel your reef’s food chain.

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

Specifications

ASIN	B08ZYGBGPQ
ASIN	B08ZYGBGPQ
Best Sellers Rank	#37,777 in Pet Supplies ( See Top 100 in Pet Supplies ) #334 in Aquarium Water Treatments
Brand Name	Aqua Algae
Customer Reviews	4.7 4.7 out of 5 stars (137)
Date First Available	March 24, 2021
Item Form	Liquid
Liquid Volume	8 Fluid Ounces
Manufacturer	Aqua Algae
Manufacturer	Aqua Algae
Package Dimensions	6.69 x 3.19 x 2.2 inches; 10.55 ounces
Target Species	Fish, Marine Invertebrates
UPC	661317842068
Unit Count	8.00 Fluid Ounces

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Received my product in pristine condition. Great service overall.

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$45.45

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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