--- product_id: 739850214 title: "8oz Concentrated Guillard's F2 Formula" brand: "aqua algae" price: "€ 80.71" currency: EUR in_stock: true category: "Aqua Algae" url: https://www.desertcart.com.cy/products/739850214-8oz-concentrated-guillards-f2-formula store_origin: CY region: Cyprus --- # feeds 230+ liters of culture scientifically proven Guillard's F/2 8oz ultra-concentrated formula 8oz Concentrated Guillard's F2 Formula **Brand:** aqua algae **Price:** € 80.71 **Availability:** ✅ In Stock ## Summary > 🌊 Cultivate the future of your reef—grow smarter, not harder! ## Quick Answers - **What is this?** 8oz Concentrated Guillard's F2 Formula by aqua algae - **How much does it cost?** € 80.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/739850214-8oz-concentrated-guillards-f2-formula) ## 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 - • **Economical & Efficient:** One 8oz bottle makes over 230 liters of culture medium—max ROI for reef enthusiasts. - • **Beginner-Friendly Setup:** Simple dosing and clear instructions make cultivating phytoplankton effortless. - • **Reef-Safe & Silicate-Free:** No brown algae blooms—pure lab-grade ingredients keep your ecosystem thriving. - • **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. ## Overview The 8oz Concentrated Guillard's F2 Formula is a premium, lab-grade phytoplankton enrichment solution designed to produce over 230 liters of nutrient-rich culture medium. Based on the scientifically validated Guillard's F/2 recipe, it delivers essential vitamins and minerals without silicates, ensuring safe, explosive algae growth for feeding copepods, rotifers, and corals in reef ecosystems. ## Description Product 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 8 oz bottle is enough for approximately 240 liters at f/2 concentration! Keep in a cool, dark area and shake prior to use. Directions 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 8 oz bottle is enough for approximately 240 liters at f/2 concentration! Keep in a cool, dark area and shake prior to use. ## Features - GROW YOUR OWN "POD" FOOD: Stop overpaying for small, short-lived bottles of phytoplankton. 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. - ULTRA-CONCENTRATED 8oz BOTTLE: A little goes a long way. This 8oz (236mL) bottle is enough to make over 230 liters (60+ gallons) of full-strength culture medium. It's the most economical way to support a thriving reef ecosystem. - 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 | B08ZYGBGPQ | | Best Sellers Rank | 94,587 in Pet Supplies ( See Top 100 in Pet Supplies ) 1,352 in Fish Food | | Brand | Aqua Algae | | Date First Available | 24 Mar. 2021 | | Item Weight | 299 g | | Package Dimensions | 16.99 x 8.1 x 5.59 cm; 299 g | ## Product Details - **Brand:** Aqua Algae - **Item form:** Liquid - **Liquid volume:** 8 Fluid Ounces - **Manufacturer:** Aqua Algae - **UPC:** 661317842068 ## Images ![8oz Concentrated Guillard's F2 Formula - Image 1](https://m.media-amazon.com/images/I/51j7a1wKp4L.jpg) ## 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. ## Frequently Bought Together - Aqua Algae 8oz Concentrated Guillard's F2 Formula - uxcell 2pcs Clear Rigid Tubing 18mm(11/16'') ID x 20mm(3/4'') OD x 1Ft Length Round Plastic Polycarbonate Tube --- ## 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.com.cy/products/739850214-8oz-concentrated-guillards-f2-formula](https://www.desertcart.com.cy/products/739850214-8oz-concentrated-guillards-f2-formula) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-04-24*