---
product_id: 10131190
title: "Penn-Plax Cascade 600 Filter Replacement Bio-Sponge (1 Sponge) – Provides Physical and Biological Filtration for Freshwater and Saltwater Aquariums"
brand: "penn-plax"
price: "Bs.282"
currency: BOB
in_stock: true
reviews_count: 13
category: "Penn Plax"
url: https://www.desertcart.bo/products/10131190-penn-plax-cascade-600-filter-replacement-bio-sponge-1-sponge
store_origin: BO
region: Bolivia
---

# Optimized anaerobic bacteria growth Precision-fit bio-sponge Reusable & easy maintenance Penn-Plax Cascade 600 Filter Replacement Bio-Sponge (1 Sponge) – Provides Physical and Biological Filtration for Freshwater and Saltwater Aquariums

**Brand:** penn-plax
**Price:** Bs.282
**Availability:** ✅ In Stock

## Summary

> 🧼 Keep your tank thriving with the ultimate bio-sponge upgrade!

## Quick Answers

- **What is this?** Penn-Plax Cascade 600 Filter Replacement Bio-Sponge (1 Sponge) – Provides Physical and Biological Filtration for Freshwater and Saltwater Aquariums by penn-plax
- **How much does it cost?** Bs.282 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/10131190-penn-plax-cascade-600-filter-replacement-bio-sponge-1-sponge)

## 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 Yet Mighty:** Sized at 2.5” x 3” x 5.5” to maximize filtration without bulk or fuss.
- • **Dual Filtration Power:** Combines mechanical trapping of debris with biological colonization for crystal-clear water.
- • **Sustainable & Cost-Effective:** Reusable sponge that preserves beneficial bacteria—clean with aquarium water, not tap.
- • **Tailored Fit for Cascade 600:** Seamlessly designed to perfectly slot into your Cascade 600 filter for hassle-free replacement.
- • **Trusted Quality from Penn-Plax:** Backed by a top pet supply brand known for durable, high-performance aquarium products.

## Overview

The Penn-Plax Cascade 600 Replacement Bio-Sponge is a precision-engineered filter media designed exclusively for the Cascade 600 internal filter. It delivers superior physical filtration by trapping large debris and enhances biological filtration by fostering anaerobic bacteria colonies essential for a healthy aquatic environment. This single-pack sponge is reusable and easy to maintain using aquarium water, ensuring long-lasting performance and cost savings. Ideal for both freshwater and saltwater tanks, it measures 2.5” x 3” x 5.5” and is manufactured by Penn-Plax, a trusted leader in pet supplies.

## Description

Penn-Plax presents the Cascade 600 Filter Replacement Bio-Sponge. This Bio-Sponge is specifically designed for the Cascade 600 Fully Submersible Internal Filter (CIF3), and serves as a replacement for when it’s time to cycle out filter media. The Bio-Sponge aids with keeping the water inside your tank crystal clean, allowing for a safe and healthy environment. Physical & Biological Filtration: This replacement Bio-Sponge optimizes the colonization of anaerobic bacteria, along with providing mechanical filtration that traps large particulate matter. 1-Pack: The package only contains a single Bio-Sponge. Although they are disposable, they can be reused time and time again. Simply clean the Bio-Sponge in a separate container with some of your aquarium’s water. This allows for the colony of anaerobic bacteria to remain intact within the Bio-Sponge. Measurements: 2. 5” (L) x 3” (D) x 5. 5” (H). Shop Penn-Plax for All Your Pet’s Needs: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.

Review: Good product, be aware it is sold individually - Just an FYI, each package only contains 1 sponge (filter floss comes in a 6 pack). . . This perfectly fits the trays inside the cascade 1200 and 1500 canister filters. The sponge is quite coarse and will catch the biggest debris particles. However you'll want a tray or two loaded with filter floss to polish the water. As for maintenance of the bio-sponge, there's really no reason to replace this product any sooner than once a year. To clean it: pour the old canister water into a bucket, then take and wring out this "biosponge" in there. Wash it off using the old aquarium water and once it's fairly clean, put the sponge right back into the filter. Don't use city tap water to wash this because the chlorine will kill the beneficial denitrifying bacteria. I say 5 stars out of 5 because it perfectly fits the filter tray, the price isn't outrageous, and it will last a really long time.
Review: Your fish tank needs this! - Easy to clean. Long lasting

## Features

- REPLACEMENT FILTER MEDIA: This Bio-Sponge is specifically designed for the Cascade 600 Fully Submersible Internal Filter (CIF3), and serves as a replacement for when it’s time to cycle out filter media.
- PHYSICAL & BIOLOGICAL FILTRATION: This replacement Bio-Sponge optimizes the colonization of anaerobic bacteria, along with providing mechanical filtration that traps large particulate matter.
- 1-PACK: The package only contains a single Bio-Sponge. Although they are disposable, they can be reused time and time again. Simply clean the Bio-Sponge in a separate container within some of your aquarium’s water. This allows for the colony of anaerobic bacteria to remain intact within the Bio-Sponge.
- MEASUREMENTS: 2.5” (L) x 3” (D) x 5.5” (H)
- SHOP PENN-PLAX FOR ALL YOUR PET’S NEEDS: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002DJD3A |
| ASIN  | B0002DJD3A |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #17,162 in Pet Supplies ( See Top 100 in Pet Supplies ) #64 in Aquarium Filters |
| Brand Name | Penn-Plax |
| Color | No Color |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,389) |
| Date First Available | January 11, 2008 |
| Date First Available  | January 11, 2008 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | Simply clean the Bio-Sponge in a separate container within some of your aquarium’s water. |
| Included Components | Penn-Plax Cascade 600 Filter Replacement Bio-Sponge (1 Sponge) – Provides Physical and Biological Filtration for Freshwater and Saltwater Aquariums |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 6 x 4 x 3 inches |
| Item Package Dimensions L x W x H | 6.54 x 3.07 x 2.72 inches |
| Item Weight | 0.08 Pounds |
| Item model number | CIF3FI |
| Item model number  | CIF3FI |
| Manufacturer | Penn Plax |
| Manufacturer  | Penn Plax |
| Material | Plastic |
| Model Name | Penn-Plax Cascade 600 Filter Replacement Bio-Sponge (1 Sponge) – Provides Physical and Biological Filtration for Freshwater and Saltwater Aquariums |
| Number of Items | 1 |
| Product Dimensions  | 6 x 4 x 3 inches; 1.28 ounces |
| Size | Cascade 600 Replacement Bio-Sponge |
| Specific Uses for Product | Indoor |
| Style | Cascade 600 Replacement Bio-Sponge |
| Target Audience Keyword | Fish, algae-eaters, fish, mollusks, octopuses, rays, snails |
| Warranty Description | Warranty |

## Images

![Penn-Plax Cascade 600 Filter Replacement Bio-Sponge (1 Sponge) – Provides Physical and Biological Filtration for Freshwater and Saltwater Aquariums - Image 1](https://m.media-amazon.com/images/I/71lk8tZJQrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product, be aware it is sold individually
*by J***B on May 22, 2012*

Just an FYI, each package only contains 1 sponge (filter floss comes in a 6 pack). . . This perfectly fits the trays inside the cascade 1200 and 1500 canister filters. The sponge is quite coarse and will catch the biggest debris particles. However you'll want a tray or two loaded with filter floss to polish the water. As for maintenance of the bio-sponge, there's really no reason to replace this product any sooner than once a year. To clean it: pour the old canister water into a bucket, then take and wring out this "biosponge" in there. Wash it off using the old aquarium water and once it's fairly clean, put the sponge right back into the filter. Don't use city tap water to wash this because the chlorine will kill the beneficial denitrifying bacteria. I say 5 stars out of 5 because it perfectly fits the filter tray, the price isn't outrageous, and it will last a really long time.

### ⭐⭐⭐⭐⭐ Your fish tank needs this!
*by D***W on January 17, 2026*

Easy to clean. Long lasting

### ⭐⭐⭐⭐⭐ Using it for stock tank!
*by C***2 on August 20, 2020*

With above ground pool pumps/filters sold out everywhere this Covid-19 summer, we got the Penn Plax Cascade 1500 filter pump for our 300 gallon stock tank that we use to cool off in. It arrived in two days at a great price and works like a charm to keep the water in the stock tank crystal clear (we cover the tank at night and also use a floater with small chlorine tablets). The pump is near silent and performs way better for our make-do little above ground pool than we ever expected, though it was designed for aquariums and not pools.

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-01-22*