--- product_id: 29144802 title: "PhytoPheed 8oz - Mercer of Montana's Concentrated Guillard's Formula f/2" brand: "mercer of montana" price: "1098324₫" currency: VND in_stock: true reviews_count: 8 category: "Mercer Of Montana" url: https://www.desertcart.vn/products/29144802-phytopheed-8oz-mercer-of-montanas-concentrated-guillards-formula-f-2 store_origin: VN region: Vietnam --- # 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:** 1098324₫ **Availability:** ✅ In Stock ## Summary > 🌿 Fuel your aquatic ecosystem with the gold standard in phytoplankton nutrition! ## 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?** 1098324₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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 - • **Clean & Pure:** Formulated without silicates to ensure optimal algae growth without unwanted contaminants. - • **Long-Lasting Supply:** One 8oz bottle with sterile dosing syringe delivers efficient, extended use at 1ml per liter. - • **High-Density Cultures:** Achieve peak cell densities for rotifer, artemia, and aquarium dosing with concentrated formula. - • **Trusted Growth Medium:** Leverage 30+ years of Guillard's f/2 formula excellence for consistent microalgae cultures. - • **Boost Your Fry's Nutrition:** Pre-load essential vitamins into phytoplankton to supercharge your fish fry’s development. ## Overview Mercer of Montana's PhytoPheed 8oz is a concentrated Guillard's f/2 formula growth medium trusted for over 30 years to cultivate high-density phytoplankton cultures. Essential for enriching fish fry feed and aquarium dosing, it contains no silicates and offers an extended shelf life, making it a reliable, efficient choice for professional aquarists and hobbyists alike. ## 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. Review: Muy buen producto - Excelente Review: As described - Works great! ## 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 | | Best Sellers Rank | #122,006 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,107 in Aquarium Water Treatments | | Brand | Mercer of Montana | | Brand Name | Mercer of Montana | | Customer Reviews | 4.6 out of 5 stars 90 Reviews | | Global Trade Identification Number | 00850047705006 | | Included Components | f/2 and sterile dosing syringe and cap | | Item Form | Liquid | | Item Weight | 8 Ounces | | Liquid Volume | 8 Fluid Ounces | | Manufacturer | Mercer Of Montana, LLC | | Manufacturer Part Number | MOM-f-2 | | Pet Type | Fish | | Target Species | Fish | | UPC | 713807383121 | | Unit Count | 1.00 Count | ## Product Details - **Brand:** Mercer of Montana - **Item Form:** Liquid - **Item Weight:** 8 Ounces - **Liquid Volume:** 8 Fluid Ounces - **Manufacturer:** Mercer Of Montana, LLC ## Images ![PhytoPheed 8oz - Mercer of Montana's Concentrated Guillard's Formula f/2 - Image 1](https://m.media-amazon.com/images/I/314bTLLkzIL.jpg) ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Muy buen producto *by H***Z on November 17, 2025* Excelente ### ⭐⭐⭐⭐⭐ As described *by C***T on January 8, 2025* Works great! ### ⭐⭐⭐⭐⭐ Great product *by R***D on February 26, 2023* Great for growing my phyto for my reef. Thank you to the seller for using biodegradable peanuts for packaging, had fun melting them. ## 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.vn/products/29144802-phytopheed-8oz-mercer-of-montanas-concentrated-guillards-formula-f-2](https://www.desertcart.vn/products/29144802-phytopheed-8oz-mercer-of-montanas-concentrated-guillards-formula-f-2) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-04-25*