--- product_id: 665084835 title: "16oz Concentrated Guillard's F/2 Formula for Marine Phytoplankton Cultivation, Aquaculture, Reef Tanks, 16 ounces" brand: "aqua algae" price: "439.44 DT" currency: TND in_stock: true category: "Aqua Algae" url: https://www.desertcart.tn/products/665084835-16oz-concentrated-guillards-f-2-formula-for-marine-phytoplankton-cultivation store_origin: TN region: Tunisia --- # Scientifically proven Guillard's F/2 standard Silicate-free, reef-safe formula 470+ liters culture medium from 16oz 16oz Concentrated Guillard's F/2 Formula for Marine Phytoplankton Cultivation, Aquaculture, Reef Tanks, 16 ounces **Brand:** aqua algae **Price:** 439.44 DT **Availability:** ✅ In Stock ## Summary > 🌊 Cultivate the Future of Your Reef—Grow More, Spend Less! ## Quick Answers - **What is this?** 16oz Concentrated Guillard's F/2 Formula for Marine Phytoplankton Cultivation, Aquaculture, Reef Tanks, 16 ounces by aqua algae - **How much does it cost?** 439.44 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/665084835-16oz-concentrated-guillards-f-2-formula-for-marine-phytoplankton-cultivation) ## 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:** Protect your delicate ecosystem with a formula that prevents harmful diatom blooms while nourishing your corals. - • **Scientifically Backed Growth:** Powered by the professional Guillard’s F/2 formula, packed with essential vitamins and trace minerals for explosive algae growth. - • **Maximize Your Microalgae Output:** One 16oz bottle yields over 470 liters of nutrient-rich culture medium—unmatched value for reef pros. - • **Economical & Sustainable Aquaculture:** Stop overpaying for short-lived bottles—this concentrated formula supports thriving cultures and saves you money. - • **Effortless Cultivation for All Levels:** Simple dosing and clear instructions make it easy to grow your own live 'pod' food, even if you’re just starting out. ## Overview Aqua Algae’s 16oz Concentrated Guillard's F/2 Formula is a premium, silicate-free marine phytoplankton fertilizer designed to produce over 470 liters of culture medium. Based on the scientifically validated Guillard’s F/2 recipe, it delivers essential nutrients and vitamins to fuel robust microalgae growth, supporting healthy reef tanks, aquaculture, and live feed cultivation with professional-grade reliability and cost efficiency. ## Description Aqua Algae Guillard’s F/2 Formula is a concentrated phytoplankton culture fertilizer formulated for preparing marine microalgae culture medium. This solution is intended for use when culturing marine phytoplankton strains such as Nannochloropsis and Tetraselmis, and is designed to be mixed with prepared saltwater as part of a separate culture setup. Product Specifications: Based on the standard Guillard’s F/2 formulation and contains vitamins B1, B12, biotin, and trace minerals used in phytoplankton culture. Silicate-free composition. At the suggested mixing rate, one 16 fl oz bottle prepares approximately 473 liters, or about 125 gallons, of culture medium. Suggested Use: 1. Add 1 mL of F/2 formula per 1 liter of prepared saltwater. Recommended specific gravity: 1.019. 2. Introduce your phytoplankton starter culture. 3. Provide illumination for 16 to 24 hours per day with gentle aeration. 4. Monitor culture development and harvest according to your standard phytoplankton culture routine. Culture timing may vary. Storage: Shake well before each use. Store in a cool, dark location. For marine aquarium phytoplankton cultivation 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 | #42,045 in Pet Supplies ( See Top 100 in Pet Supplies ) #956 in Water Treatments | | Brand Name | Aqua Algae | | Customer Reviews | 4.8 4.8 out of 5 stars (145) | | Item Form | Liquid | | Item Weight | 16 Ounces | | Liquid Volume | 16 Fluid Ounces | | Manufacturer | Aqua Algae | | Number Of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Shrimp | | UPC | 661317842075 | | Unit Count | 16.0 Milliliters | | country-of-origin | USA | ## Product Details - **Brand:** Aqua Algae - **Item Form:** Liquid - **Item Weight:** 16 Ounces - **Liquid Volume:** 16 Fluid Ounces - **Number of Packs:** 1 ## Images ![16oz Concentrated Guillard's F/2 Formula for Marine Phytoplankton Cultivation, Aquaculture, Reef Tanks, 16 ounces - Image 1](https://m.media-amazon.com/images/I/51T-gQ0o8UL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Is it safe for reef aquariums?** A: Yes, when used as directed for phytoplankton culture. Not intended for direct addition to aquariums. **Q: Does this product contain live phytoplankton?** A: No. This product is a concentrated formula for culturing phytoplankton. It does not contain live phytoplankton. **Q: What type of lighting is recommended?** A: Provide bright illumination for 16-24 hours per day. LED or grow lights work well. **Q: How should I store it?** A: Store in a cool, dark location. Keep tightly closed. ## 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.tn/products/665084835-16oz-concentrated-guillards-f-2-formula-for-marine-phytoplankton-cultivation](https://www.desertcart.tn/products/665084835-16oz-concentrated-guillards-f-2-formula-for-marine-phytoplankton-cultivation) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-27*