---
product_id: 48995710
title: "PhosGuard Phosphate and Silicate Remover, 100 ml"
brand: "seachem"
price: "VT4559"
currency: VUV
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.vu/products/48995710-phosguard-phosphate-and-silicate-remover-100-ml
store_origin: VU
region: Vanuatu
---

# Removes phosphates & silicates Irreversible binding technology Spherical granules for flow efficiency PhosGuard Phosphate and Silicate Remover, 100 ml

**Brand:** seachem
**Price:** VT4559
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your aquarium pristine and algae-free with Seachem PhosGuard!

## Quick Answers

- **What is this?** PhosGuard Phosphate and Silicate Remover, 100 ml by seachem
- **How much does it cost?** VT4559 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/48995710-phosguard-phosphate-and-silicate-remover-100-ml)

## 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

- • **Easy Integration:** Fits seamlessly into canister, box, or trickle filters for hassle-free maintenance.
- • **Optimized Flow Dynamics:** Spherical granules designed for maximum contact and minimal flow resistance in filters.
- • **Long-Lasting Performance:** Reusable until fully exhausted, ensuring extended treatment cycles and value.
- • **Trusted by Reef Enthusiasts:** Highly rated by aquarium pros for restoring balance and clarity in complex aquatic systems.
- • **Crystal Clear Waters, Always:** Effectively eliminates phosphate and silicate buildup to prevent algae bloom and biofilm.

## Overview

Seachem PhosGuard is a 100 ml phosphate and silicate remover featuring spherical granules that optimize water flow and irreversible binding to lock out contaminants. Ideal for use in various filter types, it treats over 600 liters per 500 ml and can be reused until depleted, making it a reliable solution for maintaining crystal-clear aquarium water and preventing algae growth.

## Description

Product Description Seachem PhosGuard 100Ml Directions 1. Place Seachem PhosGuard in a canister filter, box filter, or high flow area of a trickle filter. 2. Use 250 mL for every 300 L of water. 3. Leave product in place for 4 days. 4. Test phosphate or silicate concentrations. 5. If concentrations have not dropped, replace the PhosGuard. 6. Otherwise, leave in place until levels begin to climb again. 7. Each 500 mL of PhosGuard treats over 600 L of water. 8. PhosGuard does not release anything into the water and may be removed, dried, and returned to service until exhausted. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains water treatment See more

Review: Excellent product - I use this in my reef aquarium in a media sock. Excellent results.
Review: Work well - Bought this as was having trouble with fluffy algae and biofilm was significantly more than normal. So to help get the tank under control I purchased this. It's worked great and helped sort the rank and get back to normal. You don't need much at all

## Features

- Removes silicate and phosphate
- Spherical for optimal hydrodynamics
- Irreversible binding

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00029PO6O |
| Allergen Information | Yam Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 6,326 in Pet Supplies ( See Top 100 in Pet Supplies ) 81 in Aquarium Water Treatments |
| Colour | white |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,950) |
| Date First Available | 21 Oct. 2009 |
| External Testing Certification | Não aplicável |
| Item Form | Granules |
| Item Weight | 95.2 g |
| Item model number | 185 |
| Manufacturer recommended age | 1 month and up |
| Number of Items | 1 |
| Pet Life Stage | all stages |
| Pet Type | Fish |
| Product Dimensions | 3.18 x 11.91 x 12.7 cm; 95.25 g |
| Quantity | 1 |
| Size | 100 ml (Pack of 1) |
| Specific Uses | Aquarium Filtration |
| Volume | 100 Millilitres |

## Product Details

- **Brand:** Seachem
- **Item form:** Granules
- **Item weight:** 0.21 Pounds
- **Liquid volume:** 100 Millilitres
- **Manufacturer:** Seachem

## Images

![PhosGuard Phosphate and Silicate Remover, 100 ml - Image 1](https://m.media-amazon.com/images/I/91rfIZYcbGL.jpg)

## Questions & Answers

**Q: I was using Phosguard in a Freshwater tank that has a problem with Diatoms.  Now my Java fern is turning yellow and leaves are dieing.**
A: Java ferns are leaf feeders. They love phosphates.

**Q: can it be use on hang on back filter? with high flow rate?**
A: I don't see why not, it may reduce the flow some, but if you are having a problem it truly helps.  We do a water change once a month and change it every other month.  Our tank looks better and the fish have been healthier. Good Lock !

**Q: I have some brown algae on my sand bed and green algae on my glass in my 20 gallon lps reef tank. will this help? can it hurt my tank in any way?**
A: Brown algae (diatoms) & green algae can definitely be affected by phosphates & silicas.  It won't hurt your tank at all.

**Q: is this more or less the same as using chem-blue?**
A: No.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product
*by R***. on 9 September 2024*

I use this in my reef aquarium in a media sock. Excellent results.

### ⭐⭐⭐⭐⭐ Work well
*by A***S on 12 January 2026*

Bought this as was having trouble with fluffy algae and biofilm was significantly more than normal. So to help get the tank under control I purchased this. It's worked great and helped sort the rank and get back to normal. You don't need much at all

### ⭐⭐⭐⭐ An effective means of phosphate removal.
*by S***N on 3 March 2019*

Been using this product for a year or two and found it to be effective. Just follow the instuctions on the container.....the correct dosing rate is smaller than you might think and certainly smaller than a lot of the videos on YouTube that show people using huge quantities of this stuff. The phosphate removal is rapid (just three days) after which the beads may be exhausted. The phosphate binds with the beads to offer a one way transference, meaning that if you left the beads in the sump or filter they wouldn't leach out phosphate back into the tank. I'd recommend buying some zipped mesh bags from the online seller of your choice to hold the beads in the sump. I have to say that I don't like using this stuff...but it's a necessary evil. Water changes, macro algae harvesting in the sump, mangrove plants growing in the tank, low livestock levels, not over feeding are all preferable to using chemical removal of phosphates, but sometimes we need a hand getting the water parameters back on track! I also find that corals shrink back significantly after I use this product and some become discoloured. I've noticed it time after time. It defintitely upsets certain inhabitants of my tank. As the product becomes exhausted they all resume their usual selves. I want to love Phosguard but some of my corals hate it. Feed less, stock less, more water changes....my mantra! But..this stuff works!

## 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.vu/products/48995710-phosguard-phosphate-and-silicate-remover-100-ml](https://www.desertcart.vu/products/48995710-phosguard-phosphate-and-silicate-remover-100-ml)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-19*