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 (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health

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

Product ID: 323881221

Details

Brand
Aqua Algae
Item Form
Liquid
Item Weight
16 Ounces
Manufacturer
Aqua Algae
Unit Count
16.00 Fluid

🌿Guillard's F/2 pro formula

🧪470+ L culture volume

🧴16oz super concentrated

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VT12714

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Description

🌊 Cultivate the future of reef nutrition—because your tank deserves the best!

REEF SAFE SILICATE FREE - No brown algae outbreaks—formulated to keep your reef tank pristine and thriving without harmful silicates.
GROW YOUR OWN ENDLESS POD FOOD - Stop overpaying—cultivate nutrient-rich phytoplankton at home and fuel your reef’s food chain sustainably.
MASSIVE 470 LITER YIELD FROM ONE BOTTLE - One 16oz bottle stretches to over 470 liters of culture medium—unmatched value for serious reef keepers.
BEGINNER FRIENDLY WITH SIMPLE INSTRUCTIONS - Just add, shake, and light—perfect for managers who want high-performance results without the hassle.
SCIENTIFICALLY PROVEN GUILLARDS F 2 FORMULA - Trusted by professionals, packed with essential macronutrients, trace minerals, and vitamins for explosive algae growth.

F2 Ferts (16oz) is a concentrated, professional-grade Guillard's F/2 formula designed for cultivating high-density phytoplankton cultures. This silicate-free, reef-safe liquid fertilizer supports over 470 liters of culture medium, delivering essential nutrients and vitamins to boost copepod, rotifer, and coral health. Ideal for both beginners and experts, it offers an economical, scientifically validated solution to sustain vibrant reef ecosystems.

Specifications

ASIN	B08ZYMLQ8G
Best Sellers Rank	#20,313 in Pet Supplies ( See Top 100 in Pet Supplies ) #192 in Aquarium Water Treatments
Brand	Aqua Algae
Brand Name	Aqua Algae
Customer Reviews	4.8 out of 5 stars 122 Reviews
Item Form	Liquid
Item Weight	16 Ounces
Manufacturer	Aqua Algae
Target Species	Shrimp
UPC	661317842075
Unit Count	16.00 Fluid Ounces

Reviews

P**N

16.03.2026

A**S

7.11.2025

R**A

24.01.2026

A**.

9.12.2025

M**A

2.10.2024

B**D

20.04.2026

J**O

24.09.2025

J**W

22.08.2025

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VT12714

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In stock

Sold byAmazon VanuatuDelivered 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 Vanuatu.

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