---
product_id: 262296339
title: "CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch"
brand: "cermedia marinepure"
price: "$161.44"
currency: USD
in_stock: true
reviews_count: 7
category: "Cer Media Marine Pure"
url: https://www.desertcart.us/products/262296339-cermedia-marinepure-block-bio-filter-media-for-marine-and-freshwater
store_origin: US
region: United States of America
---

# Lightweight yet more effective than live rock Open-flow porosity for max water circulation 8x8x4 inch ceramic block CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch

**Brand:** cermedia marinepure
**Price:** $161.44
**Availability:** ✅ In Stock

## Summary

> 🧬 Elevate your aquarium’s ecosystem with cutting-edge ceramic bio-filtration!

## Quick Answers

- **What is this?** CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch by cermedia marinepure
- **How much does it cost?** $161.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/262296339-cermedia-marinepure-block-bio-filter-media-for-marine-and-freshwater)

## Best For

- cermedia marinepure enthusiasts

## Why This Product

- Trusted cermedia marinepure brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Light as a Feather:** Lighter than traditional live rock, making installation and maintenance hassle-free.
- • **Durable Natural Ceramic:** Inert pumice-based ceramic ensures long-lasting performance without altering water chemistry.
- • **Versatile Compatibility:** Perfect for sumps, canister filters, and large filtration systems across marine and freshwater setups.
- • **Maximize Aquarium Health:** Vast surface area promotes robust beneficial bacteria growth for superior ammonia and nitrite removal.
- • **Effortless Nitrate Control:** Advanced bio-filtration reduces nitrates, keeping your marine or freshwater tank crystal clear.

## Overview

CerMedia MarinePure Block is a premium ceramic bio-filter media designed with an open-flow porous structure and vast surface area to optimize beneficial bacteria colonization. It effectively removes ammonia, nitrites, and nitrates in both marine and freshwater aquariums. Lightweight and inert, it outperforms traditional live rock and is compatible with sumps and large filters, ensuring a healthier aquatic environment.

## Description

Ceramic Bio-Filter Media with Vast Surface Area AND Open-Flow Porosity. Designed to improve upon deep sand beds or live rock to lower nitrates in marine & freshwater aquariums. Will also remove ammonia & nitrites. Use in sumps or in extra large filters.The product is from a naturally occurring pumice that can range in colors from white to light brown. A light film developing on the media is one of the keys to it working and is perfectly.Specifically designed to target ammonia and nitrite removal and minimizes nitratesnormal.Used in canister filters.Specifically designed to target ammonia and nitrite removal and minimizes nitrates

Review: The best for media bacteria but some small part break - I feel it is the best for media bacteria, why I gave 4 star coz I received some small part is break, but anyway function still good. Otherwise I will give 5 star
Review: I received the item broken. Please return it - I received the item broken. Please return it

## Features

- Ceramic Bio-filter Media with Vast Surface Area AND Open-Flow Porosity
- Nitrate Reduction
- Ammonia and Nitrate Removal
- Lighter and more effective than Live Rock
- Inert Ceramic

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00HYUY35W |
| Allergen Information | Nut Free |
| Best Sellers Rank | #46,849 in Pet Supplies ( See Top 100 in Pet Supplies ) #2,831 in Aquarium Accessories |
| Brand | CerMedia MarinePure |
| Brand Name | CerMedia MarinePure |
| Customer Reviews | 4.2 out of 5 stars 416 Reviews |
| Global Trade Identification Number | 00857246002035 |
| Included Components | All |
| Item Form | Block |
| Item Type Name | Filter Media |
| Item form | Block |
| Manufacturer | CerMedia MarinePure |
| Manufacturer Part Number | 900501 |
| Model Number | 8" x 8" x 4" Block |
| Number of Packs | 1 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 857246002035 |
| Unit Count | 1 Count |
| Unit count | 1 Count |

## Product Details

- **Brand:** CerMedia MarinePure
- **Item form:** Block
- **Manufacturer:** CerMedia MarinePure
- **Pet Type:** Fish
- **UPC:** 857246002035

## Images

![CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch - Image 1](https://m.media-amazon.com/images/I/91jjpWZFG4L.jpg)
![CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch - Image 2](https://m.media-amazon.com/images/I/81gl0sIfAEL.jpg)
![CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch - Image 3](https://m.media-amazon.com/images/I/71BjvrFWzpL.jpg)
![CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch - Image 4](https://m.media-amazon.com/images/I/81sH2O6f6cL.jpg)
![CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch - Image 5](https://m.media-amazon.com/images/I/81XjYVzdWrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ The best for media bacteria but some small part break
*by R***Z on 21 February 2024*

I feel it is the best for media bacteria, why I gave 4 star coz I received some small part is break, but anyway function still good. Otherwise I will give 5 star

### ⭐ I received the item broken. Please return it
*by I***T on 20 February 2024*

I received the item broken. Please return it

### ⭐⭐⭐⭐⭐ Great Product, but it comes with issues
*by J***M on 31 October 2020*

Bought the large brick as I have used MarinePure for years. I used 3cft of it in my koi pond shower and used it in multiple fresh water set ups as well. I ordered this for my reef tank and as expected it is a great biological filtration choice. It does its job due to its porous design however it doesn't handle rough shipping well. My brick came broken in half. It doesn't look great but it lost none of its function. I would buy this over and over again in figure set ups without a single concern.

## Frequently Bought Together

- CerMedia MarinePure Block Bio-Filter Media for Marine and Freshwater Aquariums, 8 by 8 by 4-Inch
- CerMedia MarinePure 1.5-Inch Sphere Bio-Filter Media for Marine and Freshwater Aquariums, 2-Quart

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-24*