--- product_id: 323881221 title: "F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health" brand: "aqua algae" price: "VT12714" currency: VUV in_stock: true reviews_count: 8 category: "Aqua Algae" url: https://www.desertcart.vu/products/323881221-f2-ferts-16oz-concentrated-guillards-f-2-formula-for-phytoplankton store_origin: VU region: Vanuatu --- # Guillard's F/2 pro formula 470+ L culture volume 16oz super concentrated F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health **Brand:** aqua algae **Price:** VT12714 **Availability:** ✅ In Stock ## Summary > 🌊 Cultivate the future of reef nutrition—because your tank deserves the best! ## Quick Answers - **What is this?** F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health by aqua algae - **How much does it cost?** VT12714 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/323881221-f2-ferts-16oz-concentrated-guillards-f-2-formula-for-phytoplankton) ## 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 - • **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 Guillard's F/2 Formula:** Trusted by professionals, packed with essential macronutrients, trace minerals, and vitamins for explosive algae growth. ## Overview 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. ## Description This is a commonly used enrichment solution used in the culture of marine phytoplankton.High in essential vitaminsStimulates high concentration phytoplankton culturesContains no silicatesDirections: Simply add 1 ml to 1 L (2 ml to a 2 L pop bottle) of fresh saltwater at ~1.019 s.g., add your starter culture and light ~16 hours per day. A 16 oz bottle is enough for approximately 480 liters at f/2 concentration! Keep in a cool, dark area and shake prior to use. ## Features - GROW YOUR OWN "POD" FOOD (DOUBLE THE VALUE): Stop overpaying for small, short-lived phytoplankton bottles. 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. This 16oz size offers even greater savings per liter! - SUPER-CONCENTRATED 16oz BOTTLE: A little goes a very long way. This generous 16oz (473mL) bottle is enough to make over 470 liters (124+ gallons) of full-strength culture medium. It's the most economical way to support a thriving reef ecosystem and keep your cultures booming! - 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 | 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 | ## Product Details - **Brand:** Aqua Algae - **Item Form:** Liquid - **Item Weight:** 16 Ounces - **Manufacturer:** Aqua Algae - **Unit Count:** 16.00 Fluid Ounces ## Images ![F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health - Image 1](https://m.media-amazon.com/images/I/51T-gQ0o8UL.jpg) ![F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health - Image 2](https://m.media-amazon.com/images/I/61RZ3rJF-SL.jpg) ![F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health - Image 3](https://m.media-amazon.com/images/I/71UM-IUEbKL.jpg) ![F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health - Image 4](https://m.media-amazon.com/images/I/519-3CsH3DL.jpg) ![F2 Ferts (16oz) – Concentrated Guillard's F/2 Formula for Phytoplankton Culture - Professional Algae Fertilizer for Nannochloropsis & Tetraselmis - Boosts Copepod & Reef Tank Health - Image 5](https://m.media-amazon.com/images/I/614XkApLWgL.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 ### ⭐⭐⭐⭐⭐ Review *by P***N on March 16, 2026* ### ⭐⭐⭐⭐⭐ Review *by A***S on November 7, 2025* ### ⭐⭐⭐⭐⭐ Review *by R***A on January 24, 2026* ## Frequently Bought Together - Aqua Algae 16oz Concentrated Guillard's F/2 Formula for Marine Phytoplankton Cultivation, Aquaculture, Reef Tanks, 16 ounces - North Mountain Supply 1 Gallon Glass Jar Wide Mouth with Black Plastic Lid - USDA, BPA-Free, Made in the USA - for Fermenting, Storing, Canning, and Much More! - The Coral Ranch - Guillard's F/2 Formula Microalgae Fertilizer Concentrate 12 fl oz (350ml) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/323881221-f2-ferts-16oz-concentrated-guillards-f-2-formula-for-phytoplankton](https://www.desertcart.vu/products/323881221-f2-ferts-16oz-concentrated-guillards-f-2-formula-for-phytoplankton) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-08*