Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Guillard's F/2 Formula Microalgae Fertilizer Concentrate — Phytoplankton Culture Media for Reef Tank, Copepods, Rotifers, Brine Shrimp Food | Made in USA | 16.9 fl oz (500ml)

Product ID: 609108794

Details

Brand
The Coral
Item Form
Liquid
Item Weight
236 g
Liquid Volume
10 fluid
Number of Packs
1

📏Feeds up to 125 gallons per bottle

🧪Classic F/2 formula since 1962

🇺🇸Made in USA, premium quality

R1297

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Description

🌊 Elevate your reef game with the gold standard in microalgae culture!

PROUDLY MADE IN THE USA - Manufactured in-house by The Coral Ranch, guaranteeing quality control and supporting local craftsmanship.
EFFORTLESS PRECISE DOSING - Just 1 ml per liter of seawater delivers consistent nutrient balance with a clean, dropper-friendly bottle for repeatable accuracy.
ACADEMICALLY PROVEN FORMULA - Trusted marine microalgae culture recipe refined since 1962 ensures optimal growth and vitality for your reef ecosystem.
COMPREHENSIVE NUTRIENT BLEND - Complete macro and trace elements combined in one ready-to-use concentrate, eliminating guesswork and saving time.
BULK SIZE FOR SERIOUS CULTIVATORS - Generous 500ml bottle supports heavy culture work, perfect for breeders, hatcheries, and dedicated reef hobbyists aiming for scale.

Guillard's F/2 Formula Microalgae Fertilizer Concentrate is a ready-to-use, scientifically validated nutrient solution designed to cultivate marine microalgae such as Nannochloropsis and Isochrysis. Ideal for feeding copepods, rotifers, brine shrimp, and supporting SPS corals and larval marine fish, this 500ml bottle efficiently fertilizes up to 125 gallons of culture media. Manufactured in the USA by The Coral Ranch, it offers precise dosing and a complete nutrient profile trusted by breeders and reef enthusiasts since 1962.

Specifications

ASIN	B0CKM628G2
ASIN	B0CKM628G2
Best Sellers Rank	#90,110 in Pet Supplies ( See Top 100 in Pet Supplies ) #729 in Aquarium Water Treatments
Brand Name	The Coral Ranch
Customer Reviews	3.9 3.9 out of 5 stars (49)
Date First Available	August 13, 2023
Included Components	Microalgae Fertilizer
Item Form	Liquid
Item Weight	236 g
Item model number	f/2 10 fl oz
Liquid Volume	10 fluid ounces
Manufacturer	The Coral Ranch
Manufacturer	The Coral Ranch
Manufacturer Part Number	1
Model Number	f/2 10 fl oz
Number of Items	1
Number of Packs	1
Pet Type	Fish
Product Dimensions	2.2 x 2.2 x 9.5 inches; 8.32 ounces
Target Species	Aquatic Plants, Invertebrates
UPC	197644137695
Unit Count	16.9 Fluid Ounces
Warranty Description	30 days

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

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.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R1297

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews