---
product_id: 62982074
title: "Penn-Plax Cascade 600 Internal Bio Filter for Aquariums"
brand: "penn-plax"
price: "A$48"
currency: AUD
in_stock: true
category: "Penn Plax"
url: https://www.desertcart.com.au/products/62982074-penn-plax-cascade-600-internal-bio-filter-for-aquariums
store_origin: AU
region: Australia
---

# Optimized for Cascade 300, 400 & 600 filters High-efficiency bio-sponge for bacteria growth Easy, no-mess disposable cartridge replacement Penn-Plax Cascade 600 Internal Bio Filter for Aquariums

**Brand:** penn-plax
**Price:** A$48
**Availability:** ✅ In Stock

## Summary

> 🐟 Keep your aquatic world thriving—effortless filtration, endless admiration!

## Quick Answers

- **What is this?** Penn-Plax Cascade 600 Internal Bio Filter for Aquariums by penn-plax
- **How much does it cost?** A$48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/62982074-penn-plax-cascade-600-internal-bio-filter-for-aquariums)

## Best For

- penn-plax enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Slim 36g design fits discreetly inside your tank, maintaining aesthetics and function.
- • **Universal Compatibility:** Designed to seamlessly fit Cascade 300, 400, and 600 internal filters—one solution for multiple tanks.
- • **Eco-Friendly Maintenance:** Disposable filters simplify cleaning while supporting sustainable aquarium health.
- • **Effortless Aquarium Care:** No-fuss cartridge swaps keep your tank pristine without interrupting your day.
- • **Boost Beneficial Bacteria:** Specialized bio-sponge maximizes aerobic bacteria colonization for a healthier aquatic ecosystem.

## Overview

The Penn-Plax Cascade 600 Internal Bio Filter replacement cartridge features a high-efficiency bio-sponge and carbon filter designed to optimize beneficial aerobic bacteria growth. Compatible with Cascade 300, 400, and 600 internal power filters, it offers easy, disposable replacements that simplify aquarium maintenance while promoting a healthy aquatic environment.

## Description

Product Description The Penn-Plax Cascade 600 Replacement Bio-Sponge helps support clearer aquarium water through efficient mechanical and biological filtration in the Cascade 600 Fully Submersible Internal Filter (CIF3). This reusable filter sponge captures debris, waste, and uneaten food while promoting a balanced aquatic environment. Rinse and reuse to extend performance. Each black bio-sponge fits securely within the Cascade 600 Internal Filter for steady water movement and consistent filtration. For best results, rinse in aquarium water to preserve aquatic micro-life. Measures approximately 2.5 x 3 x 5.5 inches. Directions Simply clean the Bio-Sponge in a separate container within some of your aquarium’s water.

## Features

- Convenient, no-fuss replacement cartridges for your Cascade 600 internal power filter.
- Optimizes the colonization of beneficial aerobic bacteria.
- Easy-to-replace disposable filters.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002DJD3A |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 203,176 in Pet Supplies ( See Top 100 in Pet Supplies ) 3,068 in Aquarium Filter Accessories |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,325) |
| Date First Available | 9 Aug. 2012 |
| Item Weight | 36.3 g |
| Item model number | CIF3FI |
| Number of Items | 1 |
| Product Dimensions | 15.24 x 10.16 x 7.62 cm; 36.29 g |
| Quantity | 1 |
| Size | 1-Pack Bio Foam |

## Images

![Penn-Plax Cascade 600 Internal Bio Filter for Aquariums - Image 1](https://m.media-amazon.com/images/I/81+Rt-zQZJL.jpg)

## Available Options

This product comes in different **Style** options.

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**Shop now:** [https://www.desertcart.com.au/products/62982074-penn-plax-cascade-600-internal-bio-filter-for-aquariums](https://www.desertcart.com.au/products/62982074-penn-plax-cascade-600-internal-bio-filter-for-aquariums)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-10-20*