---
product_id: 48903294
title: "Small World Aquarium Filter – Comes with a Disposable Media Cartridge (Bio Sponge, Carbon, and Zeolite Crystals) – Safe for Freshwater and Saltwater Setups"
brand: "penn-plax"
price: "€ 15.86"
currency: EUR
in_stock: true
reviews_count: 13
category: "Penn Plax"
url: https://www.desertcart.hr/products/48903294-small-world-aquarium-filter-comes-with-a-disposable-media-cartridge
store_origin: HR
region: Croatia
---

# Bio Sponge for superior filtration Carbon & Zeolite for toxin removal Fits tanks up to 5 gallons Small World Aquarium Filter – Comes with a Disposable Media Cartridge (Bio Sponge, Carbon, and Zeolite Crystals) – Safe for Freshwater and Saltwater Setups

**Brand:** penn-plax
**Price:** € 15.86
**Availability:** ✅ In Stock

## Summary

> 🌊 Small tank, big impact — keep your aquatic world pristine and thriving!

## Quick Answers

- **What is this?** Small World Aquarium Filter – Comes with a Disposable Media Cartridge (Bio Sponge, Carbon, and Zeolite Crystals) – Safe for Freshwater and Saltwater Setups by penn-plax
- **How much does it cost?** € 15.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48903294-small-world-aquarium-filter-comes-with-a-disposable-media-cartridge)

## 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 Powerhouse:** Designed specifically for small aquariums up to 5 gallons, perfect for desktop or cozy home setups.
- • **Effortless Maintenance:** Disposable cartridge system with easy rinse prep ensures hassle-free cleaning and optimal filter performance.
- • **Odor & Toxin Eliminator:** Scientifically formulated media rapidly absorbs ammonia, nitrites, nitrates, phosphates, and eliminates foul odors.
- • **Universal Compatibility:** Mounts securely on glass, acrylic, or plastic surfaces, fitting a variety of tank shapes and brands.
- • **Triple-Action Media Cartridge:** Includes Bio Sponge, Carbon, and Zeolite crystals to physically filter, detoxify, and maintain crystal-clear water.

## Overview

The Penn-Plax Small World Aquarium Filter is engineered for aquariums up to 5 gallons, featuring a disposable media cartridge with Bio Sponge, Carbon, and Zeolite crystals. It delivers physical, biological, and chemical filtration to maintain healthy, clear water in both freshwater and saltwater setups. Compatible with various tank materials and shapes, it mounts securely with suction cups and offers easy maintenance for busy professionals seeking a low-fuss aquatic environment.

## Description

Free delivery and returns on eligible orders. Buy Penn-Plax Small World Aquarium Filter – Comes with a Disposable Media Cartridge (Bio Sponge, Carbon, and Zeolite Crystals) – Safe for Freshwater and Saltwater Setups at desertcart UK.

Review: Good filter for small - Have been using these little filter cartridges for years . My goldfish is 6 years old so certainly doing the job .
Review: Worth money perfect - Ideal for small tanks

## Features

- GREAT FOR SMALLER SETUPS: The Small World Filter is specifically designed for aquariums and tanks up to 5 gallons. In addition to our Small World, New World, and Betta World habitats, this filter is compatible with other tanks in the market. It fits all shapes and sizes, and also mounts securely to glass, acrylic, and plastic surfaces.
- BIO SPONGE: the included media cartridge also contains a Bio Sponge for physical filtration of larger particulate matter, and biological filtration that optimizes the colonization of anaerobic bacteria.
- CARBON & ZEOLITE MIXTURE: Supercharged with scientifically formulated the media cartridge in this kit absorbs ammonia, nitrites, nitrates, and phosphates in a fast and timely manner, along with removing harmful chemicals and toxins, clearing up discolorations, and reducing foul odors from your aquarium, tank, or habitat.
- CLEANING & MAINTENANCE: Before placing into your aquarium, tank, or habitat, please briefly rinse the filtration unit with warm water in order to remove Carbon or Zeolite dust. If not done before installation, the water could initially become dark or cloudy.
- PLEASE NOTE: The Small World Filter (SWF1), does not come with Air Tubing or an Air Pump, which are Sold Separately. This Aquarium Filter comes with a Mounting Bracket w/ Suction Cups for strong and secure placement, a Disposable Media Cartridge, and a Connector that allows easy connection to standard size air tubing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002565KC |
| Allergen Information | Abalone Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 13,962 in Pet Supplies ( See Top 100 in Pet Supplies ) 57 in Aquarium Filters |
| Colour | Multicolor |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,841) |
| Date First Available | 16 Feb. 2010 |
| EU Energy Efficiency Label | High |
| Flavor | Aquarium Filter |
| Item Weight | 81.6 g |
| Item model number | SWF1 |
| Number of Items | 1 |
| Pet Life Stage | All Life Stages |
| Pet Type | small animals |
| Product Dimensions | 15.24 x 5.08 x 15.24 cm; 81.65 g |
| Quantity | 1 |
| Size | Aquarium Filter |
| Specific Uses | Indoor |

## Product Details

- **Brand:** Penn-Plax
- **Global Trade Identification Number:** 00030172390067
- **Item Weight:** 2.88 ounces
- **Manufacturer:** Penn Plax
- **UPC:** 764999868804 030172390067

## Images

![Small World Aquarium Filter – Comes with a Disposable Media Cartridge (Bio Sponge, Carbon, and Zeolite Crystals) – Safe for Freshwater and Saltwater Setups - Image 1](https://m.media-amazon.com/images/I/81I3XTUzx2L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good filter for small
*by M***I on 28 May 2025*

Have been using these little filter cartridges for years . My goldfish is 6 years old so certainly doing the job .

### ⭐⭐⭐⭐⭐ Worth money perfect
*by L***G on 8 August 2025*

Ideal for small tanks

### ⭐⭐⭐⭐ Very good filter
*by L***N on 3 June 2018*

Seems to be working perfectly only had for a few days tho, fish look happy and tank lovely and clear.. however the bubbles it creates are very loud... small price to pay for a brilliant filter :)

## Frequently Bought Together

- Penn-Plax Small World Aquarium Filter – Comes with a Disposable Media – Safe for Freshwater and Saltwater Setups (SWF1)
- PENN-PLAX Standard Airline Tubing for Aquariums – Clear and Flexible – Resists Kinking – Safe for Freshwater and Saltwater Fish Tanks – 8 Feet

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-01*