--- product_id: 94583704 title: "Seachem PhosGuard, 100 mL bagged - 67101850" brand: "seachem" price: "HK$135" currency: HKD in_stock: true reviews_count: 11 category: "Seachem" url: https://www.desertcart.hk/products/94583704-seachem-phosguard-100-ml-bagged-67101850 store_origin: HK region: Hong Kong --- # Rapid phosphate & silicate removal Bead-shaped for optimal water flow Highly porous, max capacity Seachem PhosGuard, 100 mL bagged - 67101850 **Brand:** seachem **Price:** HK$135 **Availability:** ✅ In Stock ## Summary > 💧 Clear water, clear mind — elevate your aquarium game! ## Quick Answers - **What is this?** Seachem PhosGuard, 100 mL bagged - 67101850 by seachem - **How much does it cost?** HK$135 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/94583704-seachem-phosguard-100-ml-bagged-67101850) ## Best For - seachem enthusiasts ## Why This Product - Trusted seachem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Engineered for flow:** Bead-shaped design ensures optimal water circulation and maximum efficiency. - • **Compact yet powerful:** 100 mL treats up to 60 gallons, making it a space-saving powerhouse. - • **Lightning-fast clarity:** Rapidly eliminates phosphates and silicates to keep your aquarium pristine. - • **Maximum absorption power:** Highly porous beads deliver superior capacity compared to competitors. - • **Trusted marine & freshwater ally:** Perfect for both marine and freshwater tanks (except phosphate-buffered freshwater). ## Overview Seachem PhosGuard is a premium 100 mL aquarium water treatment that rapidly removes phosphate and silicate from marine and freshwater tanks. Its bead-shaped, highly porous design optimizes water flow and absorption capacity, outperforming competing products. Ideal for tanks up to 60 gallons, it ensures crystal-clear water and healthier aquatic environments. ## Description Phosguard rapidly removes phosphate and silicate from marine and freshwater aquaria. It is not recommended for phosphate buffered freshwater. Phosguard is highly porous for high capacity and bead-shaped for optimum water flow. It outperforms all competing products. Review: Best Seachem Products - Original Seachem product. My water had a lot of phosphates and had diatom nightmare and this product reduced a very little bit. The best thing I recommend installing a UV filter will kill floating diatom to some extent and control it by doing more water changes. The seller is a good and genuine Seachem product Review: This is an amazing product and worked like UFO in my marine tank ... - This is an amazing product and worked like UFO in my marine tank and green water is almost cleared to white crystal and works best with Purigen ## Features - Rapidly Removes Phosphate And Silicate From Marine And Freshwater Aquaria - Highly Porous For High Capacity And Bead Shaped For Optimum Water Flow - Outperforms all competing products - Not Recommended For Phosphate Based Buffers In Freshwater Aquaria - 100 milliliters treats 60 US gallons ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00029PO6O | | Best Sellers Rank | #41,354 in Pet Supplies ( See Top 100 in Pet Supplies ) #856 in Water Treatments | | Brand | Seachem | | Country of Origin | USA | | Department | Unisex-Adult | | Generic Name | Seachem PhosGuard, 100 mL bagged - 67101850 | | Global Trade Identification Number | 00000116018500 | | Included Components | Seachem PhosGuard, 100 mL bagged - 67101850 | | Item Dimensions LxWxH | 32 x 119 x 127 Millimeters | | Item Form | Gallons | | Item Weight | 95.2 g | | Item model number | 185 | | Liquid Volume | 100 Millilitres | | Manufacturer | Seachem Laboratories, Inc. | | Net Quantity | 1 Count | | Product Dimensions | 3.18 x 11.91 x 12.7 cm; 95.25 g | | UPC | 000116018500 | ## Product Details - **Brand:** Seachem - **Item Form:** Gallons - **Item Weight:** 95 g - **Liquid Volume:** 100 Millilitres - **Manufacturer:** Seachem Laboratories, Inc. ## Images ![Seachem PhosGuard, 100 mL bagged - 67101850 - Image 1](https://m.media-amazon.com/images/I/91rfIZYcbGL.jpg) ## Questions & Answers **Q: Is it a 60gallon or 30gallon treating substrate** A: 30 gal **Q: please let me know whether it is for 60 or 30 galon and the expiry date.** A: after 7 days you need to clean the total pack **Q: A 100ml pack how many time we can use? Please suggest** A: Depends on water.. change is recommended once it change it colour to brown **Q: does it come with a net bag?** A: No I didn't get along with it ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best Seachem Products *by A***N on 22 July 2021* Original Seachem product. My water had a lot of phosphates and had diatom nightmare and this product reduced a very little bit. The best thing I recommend installing a UV filter will kill floating diatom to some extent and control it by doing more water changes. The seller is a good and genuine Seachem product ### ⭐⭐⭐⭐⭐ This is an amazing product and worked like UFO in my marine tank ... *by R***L on 5 September 2016* This is an amazing product and worked like UFO in my marine tank and green water is almost cleared to white crystal and works best with Purigen ### ⭐⭐⭐⭐⭐ Phosguard good *by H***U on 16 August 2018* Phosguard good ## Frequently Bought Together - Seachem PhosGuard, 100 mL bagged - 67101850 - Seachem Indoor Purigen Organic Filtration Resin - Fresh and Saltwater 100 ml - Boyd Enterprises ABE16743 Chemipure Elite for Aquarium, 11.74-Ounce --- ## 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.hk/products/94583704-seachem-phosguard-100-ml-bagged-67101850](https://www.desertcart.hk/products/94583704-seachem-phosguard-100-ml-bagged-67101850) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-04-23*