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Achieve Crystal Clear Aquarium Water
Seachem PhosGuard is a premium aquarium water treatment designed to rapidly remove harmful phosphate and silicate from both marine and freshwater tanks. Its advanced, bead-shaped media is highly porous, ensuring maximum surface area for high capacity and optimal water flow, outperforming many competing products. This imported formulation is crucial for maintaining a healthy aquatic environment and preventing nuisance algae growth.
Each 100ml bag of PhosGuard treats up to 200 L (50 US gallons) of saltwater or 400 L (100 US gallons) of freshwater. For best results, pre-wet and rinse the media before use, then place it in a high-flow area such as a canister filter or media chamber. Reviewers highlight its effectiveness in reducing algae and improving water clarity, especially in heavily stocked tanks or those with high nutrient loads.
While effective, PhosGuard is not recommended for phosphate-buffered freshwater systems. For Indian aquarists, this imported solution offers a reliable way to manage water quality, ensuring a cleaner, healthier habitat for fish and invertebrates. All customs duties and GST are included in the listed price, with tracked delivery via ExpressBox within 14-16 days.
Superior Water Quality for Your Aquarium
Seachem PhosGuard is engineered for rapid and effective removal of phosphate and silicate, key contributors to nuisance algae blooms. Its unique, bead-shaped, highly porous media maximizes surface area, ensuring high capacity and optimal water flow through your filtration system. This imported formulation is trusted by aquarists worldwide for its ability to significantly improve water clarity and maintain a stable environment for delicate marine and freshwater inhabitants. Unlike generic treatments, PhosGuard's advanced composition is designed for superior performance, outperforming many competing products in reducing harmful nutrient levels and promoting a healthier, more vibrant aquarium ecosystem.
Who It's For vs. Who Should Skip It
This product is ideal for aquarists managing phosphate and silicate levels in both marine and freshwater aquariums, particularly those struggling with algae outbreaks or maintaining sensitive coral and fish species. It's perfect for users who need a high-capacity, efficient media that maximizes filtration performance. However, PhosGuard is not recommended for freshwater aquariums utilizing phosphate-based buffering systems, as it may interfere with their intended function. If your freshwater tank relies on such buffers, consider alternative Seachem products designed for those specific water chemistry needs.
Typical situations where Seachem PhosGuard Phosphate and Silicate Remover 400ml (13.5 Fl Oz) | Rapid Algae Control for Aquariums helps — illustrative scenarios, not customer reviews.
An aquarist in Chennai faces persistent green algae blooms in their 200L marine tank due to high tap water phosphate levels.
Using Seachem PhosGuard, they treat 200L with one 100ml bag. The rapid removal of phosphate and silicate significantly reduces algae growth within days, restoring water clarity and coral health. This pack offers 8 treatments for their tank.
A hobbyist in Delhi has a 400L freshwater planted tank with silicate issues affecting plant growth and clarity.
They apply 100ml of PhosGuard to their 400L freshwater tank. The media's high capacity and optimal flow effectively reduce silicate, supporting healthier plant growth and clearer water. This pack provides 4 treatments for their large freshwater setup.
| Primary Function | Phosphate and Silicate Removal |
| Media Type | Highly porous, bead-shaped |
| Free From | Not applicable (media) |
| Directions | Rinse before use. Place in high-flow area (canister filter, media chamber). Use 85 mL (1/3 cup) per 200 L (50 US gal) saltwater or 400 L (100 US gal) freshwater. |
| Treatment Capacity | Each 100ml bag treats up to 400 L (100 US gal) freshwater. |
| Cost per use | 400 L per bag — ₹2.83 per liter (total 1600 L freshwater treatment capacity) |
| Shelf life after opening | Does Not Expire |
| Contraindications | Not recommended for phosphate-based buffers in freshwater aquaria. |
| Allergens / common irritants | N/A (media) |
| Feature | Seachem PhosGuard Phosphate | Others |
|---|---|---|
| Phosphate & Silicate Removal | Rapid, high-capacity removal via porous bead media. Outperforms competitors. | Varies by brand; some offer basic phosphate removal, silicate removal less common. Effectiveness can be lower. |
| Media Type & Flow | Bead-shaped, highly porous for optimal water flow and capacity. | Often granular or powdered; flow can be restricted, capacity may vary. |
| Treatment Capacity (Freshwater) | 100ml treats 400L. 400ml total treats 1600L. — ₹2.83 per liter | Typically 500ml-1L bottles treating 100-200L. Local cost ₹400-₹700/200L. |
| Freshwater Buffer Compatibility | Not recommended for phosphate-based buffers. | Varies; some may be compatible, others may interfere with buffering. |
| Origin & Sourcing | Imported from authorized US retailers and brand partners. | Manufactured in India or imported from various global sources. |
| SKU | pdb3445 |
| Brand | Seachem |
| Product Name | PhosGuard |
| Model Number | 185 |
| Item Form | Bead-shaped media |
| Color | White |
| Total Volume | 400 ml (13.5 Fl Oz) |
| Pack Quantity | 4 x 100 ml bags |
| Item Weight | 0.24 kg (0.53 lbs) |
| Package Weight | 0.4 kg (0.88 lbs) |
| Dimensions (Package) | 13.4 cm x 1.9 cm x 18.9 cm (5.3" x 0.7" x 7.4") |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About Seachem
Seachem is a leading brand in aquarium water care, known for innovative and effective solutions for both freshwater and marine aquariums.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
Seachem PhosGuard Phosphate and Silicate Remover 400ml (13.5 Fl Oz) | Rapid Algae Control for Aquariums
4,530
This item
Seachem PhosGuard Phosphate and Silicate Remover 400ml (13.5 Fl Oz) | Rapid Algae Control for Aquariums
4,530
Total price:
11,770
You save 7,740 (40%) Extra3 items selected
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| Attributes | Current |  |  |  |  | ||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 4,530 9,380 | 5,150 7,280 | 2,090 2,850 | 2,640 4,090 | 1,420 1,820 | 2,200 2,890 | 1,620 1,760 |
| Rating | 4.60(2,010) | 5.00(3) | 4.10(37K+) | 4.30(208) | 4.30(49) | 4.60(14K+) | 4.63(8) |
| Brand Name | Seachem | Seachem | Outward Hound | TropiClean | COSMOING | Virbac | Hikari |
| Item Form | Liquid | N/A | N/A | N/A | N/A | N/A | N/A |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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