---
product_id: 7735474
title: "Pura (Magnavore) APU00400 Phoslock Aquarium Filter Media for 300-Gallon Tank, 150gm"
brand: "pura (magnavore)"
price: "¥5424"
currency: JPY
in_stock: false
category: "Pet Products"
url: https://www.desertcart.jp/products/7735474-pura-magnavore-apu00400-phoslock-aquarium-filter-media-for-300-gallon
store_origin: JP
region: Japan
---

# Pura (Magnavore) APU00400 Phoslock Aquarium Filter Media for 300-Gallon Tank, 150gm

**Brand:** pura (magnavore)
**Price:** ¥5424
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Pura (Magnavore) APU00400 Phoslock Aquarium Filter Media for 300-Gallon Tank, 150gm by pura (magnavore)
- **How much does it cost?** ¥5424 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/7735474-pura-magnavore-apu00400-phoslock-aquarium-filter-media-for-300-gallon)

## Best For

- pura (magnavore) enthusiasts

## Why This Product

- Trusted pura (magnavore) brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Pura Phoslock is the benchmark ferric hydroxide media for total phosphate removal in all aquaria. Fast acting, long lasting and very effective in reef, marine, planted and delicate freshwater aquaria. It is the product of choice for many critical water purity applications. Stable and will not disintegrate even if subjected to high flow rates. It permanently and irreversibly binds phosphate and silicates. With regular use of PhosLock any aquarium fresh or salt, reef or planted, will stay much cleaner and less maintenance labor intensive. It does not contaminate water with free iron. Removes large quantities of phosphate, arsenic, silicates and other heavy metals and thus greatly reduces propagation of algae. No impact on trace elements and desirable fertilizers like potassium. Convenient to implement. Media bag with PhosLock can be placed inside of canister filters, power filters, pond filters, sumps, refugiums, corner filters, next to uplift tube on UG filter plate. It can be placed directly into Bio-Bags or other fine floss bags. It is 5 to 10 times more effective than white activated alumina media and it is completely safe for fish and invertebrate, fresh and salt-water aquariums. This 150-gram Phoslock comes with 6-inch by 12-inch 300-micron media bag. Treats 300-gallon aquarium.

## Features

- Phoslock is the benchmark ferric hydroxide media for total phosphate removal in all aquaria
- Permanently and irreversibly binds phosphate and silicates
- Feature removes large quantities of phosphate, arsenic, silicates and other heavy metals and thus greatly reduces propagation of algae
- Phoslock can be placed inside of sumps, refugiums, canister, power, pond and corner filters next to uplift tube on UG filter plate
- This 150-gram Phoslock comes with a 6-inch by 12-inch 300-micron media bag; treats 300-gallon aquarium

## Images

![Pura (Magnavore) APU00400 Phoslock Aquarium Filter Media for 300-Gallon Tank, 150gm - Image 1](https://m.media-amazon.com/images/I/51527mQ0xnL.jpg)
![Pura (Magnavore) APU00400 Phoslock Aquarium Filter Media for 300-Gallon Tank, 150gm - Image 2](https://m.media-amazon.com/images/I/31LLjWRgkEL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/7735474-pura-magnavore-apu00400-phoslock-aquarium-filter-media-for-300-gallon](https://www.desertcart.jp/products/7735474-pura-magnavore-apu00400-phoslock-aquarium-filter-media-for-300-gallon)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-13*