--- product_id: 29144802 title: "PhytoPheed 8oz - Mercer of Montana's Concentrated Guillard's Formula f/2" brand: "mercer of montana" price: "124.64 DT" currency: TND in_stock: true category: "Mercer Of Montana" url: https://www.desertcart.tn/products/29144802-phytopheed-8oz-mercer-of-montanas-concentrated-guillards-formula-f-2 store_origin: TN region: Tunisia --- # Extended shelf life for lasting use Maximizes phytoplankton cell density 30+ years proven Guillard's f/2 formula PhytoPheed 8oz - Mercer of Montana's Concentrated Guillard's Formula f/2 **Brand:** mercer of montana **Price:** 124.64 DT **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your aquatic feed game with science-backed purity and power! ## Quick Answers - **What is this?** PhytoPheed 8oz - Mercer of Montana's Concentrated Guillard's Formula f/2 by mercer of montana - **How much does it cost?** 124.64 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/29144802-phytopheed-8oz-mercer-of-montanas-concentrated-guillards-formula-f-2) ## Best For - mercer of montana enthusiasts ## Why This Product - Trusted mercer of montana brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Silicate-Free Purity:** Ensure a clean, contaminant-free culture environment with a formula containing zero silicates. - • **Trusted Growth Medium:** Leverage 30+ years of Guillard's f/2 formula excellence for consistent, high-quality phytoplankton cultures. - • **Long-Lasting Concentrate:** One 8oz bottle with precise 1ml/liter dosing delivers extended use and unbeatable value. - • **Boost Your Fry's Nutrition:** Pre-load essential vitamins into phytoplankton to supercharge your fish fry, rotifer, and artemia feed. - • **Versatile Aquarium Solution:** Perfect for continuous or batch microalgae cultures, enhancing your entire aquatic ecosystem. ## Overview Mercer of Montana's PhytoPheed 8oz is a concentrated Guillard's f/2 formula, trusted for over 30 years as the gold standard growth medium for phytoplankton. Designed to maximize cell density and pre-load essential vitamins for fish fry nutrition, this silicate-free liquid concentrate offers extended shelf life and precise dosing, making it an essential tool for professional aquarists and fish breeders aiming for optimal aquatic health. ## Description Mercer Of Montana has concentrated the Guillard f/2 formula to help you achieve high density, continuous or batch cultures of micro algae for your fish fry, rotifer and artemia feed, or to dose to your aquarium system. Hydro Algal Fertilizer, Phyto Pheed, has an extended shelf life, and using the suggested dosing of 1ml/liter, one 8 ounce bottle will last. ## Features - Guillard's f/2 formula growth medium standard for over 30 years - Essential to pre-loading vitamins into phytoplankton prior to feeding fry - Promotes the highest cell densities in your phytoplankton culture - Contains no silicates ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01BTY2B98 | | ASIN | B01BTY2B98 | | Best Sellers Rank | #125,738 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,086 in Aquarium Water Treatments | | Brand Name | Mercer of Montana | | Customer Reviews | 4.6 4.6 out of 5 stars (92) | | Date First Available | February 18, 2016 | | Global Trade Identification Number | 00850047705006 | | Included Components | f/2 and sterile dosing syringe and cap | | Item Form | Liquid | | Item Weight | 8 ounces | | Item Weight | 8 ounces | | Liquid Volume | 8 fluid ounces | | Manufacturer | Mercer Of Montana, LLC | | Manufacturer | Mercer Of Montana, LLC | | Manufacturer Part Number | MOM-f-2 | | Pet Type | Fish | | Target Species | Fish | | UPC | 713807383121 | | Unit Count | 1 Count | ## Product Details - **Brand:** Mercer of Montana - **Item Form:** Liquid - **Item Weight:** 8 ounces - **Liquid Volume:** 8 fluid ounces - **Unit Count:** 1 Count ## Images ![PhytoPheed 8oz - Mercer of Montana's Concentrated Guillard's Formula f/2 - Image 1](https://m.media-amazon.com/images/I/314bTLLkzIL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Hello, i am in wyoming and store my fertilizer in our mud room. can get to 30-35 degrees. i noticed my bottle of fertilizer has been leaking. is it o?** A: Sounds like the bottle froze and cracked. Would swap the bottle and shake well before use. **Q: How long does this stay?** A: 6 to 12 months but keep in cool area and no light when. Not in use **Q: Is this product organic?** A: In a chemistry equations this item is organic. **Q: is it sterile?** A: The item contains, an algae culture, the culture media was probably pure when inoculated, the term sterile refers to something that is void of contaminants, or in bacteriology a sterile can be a poisonous segment of an amoeba, bacteria, or virus. ## Frequently Bought Together - PhytoPheed 8oz - Mercer of Montana's Concentrated Guillard's Formula f/2 - Mercer of Montana Tetraselmis Phytoplankton (16oz) Cultured - Nannochloropsis Phytoplankton (16oz) Cultured by Mercer of Montana --- ## 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/29144802-phytopheed-8oz-mercer-of-montanas-concentrated-guillards-formula-f-2](https://www.desertcart.tn/products/29144802-phytopheed-8oz-mercer-of-montanas-concentrated-guillards-formula-f-2) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-13*