---
product_id: 7667091
title: "Small World Aquarium Filter – Comes with a Disposable Media – Safe for Freshwater and Saltwater Setups (SWF1)"
brand: "penn-plax"
price: "€ 28.97"
currency: EUR
in_stock: true
reviews_count: 12
category: "Penn Plax"
url: https://www.desertcart.hr/products/7667091-small-world-aquarium-filter-comes-with-a-disposable-media-safe
store_origin: HR
region: Croatia
---

# Carbon & Zeolite mix absorbs toxins & odors Bio Sponge for physical & biological filtration Secure suction mount fits all tank surfaces Small World Aquarium Filter – Comes with a Disposable Media – Safe for Freshwater and Saltwater Setups (SWF1)

**Brand:** penn-plax
**Price:** € 28.97
**Availability:** ✅ In Stock

## Summary

> 🌊 Small Tank, Big Impact: Elevate your aquatic vibe with the ultimate micro-filter!

## Quick Answers

- **What is this?** Small World Aquarium Filter – Comes with a Disposable Media – Safe for Freshwater and Saltwater Setups (SWF1) by penn-plax
- **How much does it cost?** € 28.97 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/7667091-small-world-aquarium-filter-comes-with-a-disposable-media-safe)

## 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

- • **Effortless Maintenance:** Disposable media cartridge replaced every 2-4 weeks keeps your aquatic environment pristine.
- • **Universal Compatibility:** Fits glass, acrylic, and plastic tanks of all shapes—versatility meets sleek design.
- • **Discreet & Secure Installation:** Mounts with strong suction cups and includes connector for standard air tubing (pump sold separately).
- • **Tailored for Compact Aquariums:** Optimized for tanks up to 5 gallons—perfect for your desktop or cozy home setup.
- • **Triple-Action Filtration Power:** Bio Sponge plus Carbon & Zeolite media deliver crystal-clear, toxin-free water fast.

## Overview

The Penn-Plax Small World Filter is a compact, high-performance filtration system designed for aquariums up to 5 gallons. Featuring a bio sponge for physical and biological filtration combined with a scientifically formulated carbon and zeolite media cartridge, it efficiently removes harmful chemicals, toxins, and odors. Its universal mounting system fits all tank surfaces securely, making it ideal for both freshwater and saltwater setups. Easy to maintain with disposable cartridges replaced every 2-4 weeks, this filter ensures a crystal-clear, healthy environment for your aquatic pets.

## Description

PENN-PLAX presents the Small World Filter. This 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. Furthermore, it’s safe for both Freshwater and Saltwater setups. Carbon & Zeolite Mixture: Supercharged with scientifically formulated Carbon and Zeolite Crystals, 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. Bio Sponge: In addition to the Carbon and Zeolite Crystals, 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. 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. For best results, the disposable media cartridge should be replaced every 2 – 4 weeks, ensuring a crystal clear and healthy environment for your fish. 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. Measurements: Filter Mounting Bracket with Connector (1.5” x 1.25” x 5”), and Filter Media Cartridge (1.3” x 1.1” x 4.1”).

Review: Great Little Filter/Bubbler For The Price - I wanted a small filter/bubbler for a 2 gallon fish bowl and decided to give this one a try because of the price and because it came with a pump. It was easy to set up and install. It stayed suctioned to the side of the glass with no problem. I like that it comes with a release valve so that you can control the amount of air flow. I read a lot of the other reviews where they mentioned too many bubbles - that's probably from not using the enclosed valve. I highly suggest using it if your tank is under 2 gallons. My set up is a 2 gallon fish bowl that's mostly an aqua scape of live plants, driftwood, and gravel. It has an outer heat lamp for the live plants. I'm going to leave about 2 to 3 inches at the top to allow for slight spatter from the bubbles. I do intend to add fish - probably two female bettas, or a few white cloud minnows. Being an aqua scape, I won't add more fish than that. Otherwise, it looks like the filter is going to work great for this set up. So far, so good.
Review: Penn Plax Small World Aquarium Filter Review - After having numerous problems with waterfall filters that suck up small fish and tadpoles, I found this product and would not have any other filter. I use it for my 10 gallon tank and it works very well. All you do is connect it to your aerator. There is no suction at all and no waterfall to toss my small fish around. It cleans the water and provides oxygen for your aquatic buddies. The filter cartridge is visible, so you know exactly when to change it. Not all pet stores carry this product, but it is well worth it to order the extra cartridges online (as you can find it for the same price you would in stores even with shipping). When I accidently threw away the cartridge holder, I went out of my way to find it again for the safety of my fish. However, if you have live tubifex worms, they will make a home out of the filter if it is too close to the ground so I recommend placing it high in your tank. But if it does happen and you don't want to kill them, slowly move the filter out of the water over the course of a day or two and they will wiggle their way out and back to the gravel. But anyways, I would definitely recommend this product for anyone.

## 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 |
| ASIN  | B0002565KC |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #23,988 in Pet Supplies ( See Top 100 in Pet Supplies ) #334 in Aquarium Filters |
| Brand Name | Penn-Plax |
| Color | Multicolor |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,767) |
| Date First Available | August 3, 2004 |
| Date First Available  | August 3, 2004 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | 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. |
| Included Components | Filter and Media Cartridge |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 6 x 2 x 6 inches |
| Item Package Dimensions L x W x H | 8.31 x 5.63 x 1.73 inches |
| Item Weight | 0.18 Pounds |
| Item model number | SWF1 |
| Item model number  | SWF1 |
| Manufacturer | Penn Plax |
| Manufacturer  | Penn Plax |
| Material | Plastic |
| Model Name | SWF1 |
| Number of Items | 1 |
| Product Dimensions  | 6 x 2 x 6 inches; 2.88 ounces |
| Size | Aquarium Filter |
| Specific Uses for Product | Indoor |
| Style | Aquarium Filter |
| Target Audience Keyword | fish |
| Warranty Description | Full Amazon Policy |

## Images

![Small World Aquarium Filter – Comes with a Disposable Media – Safe for Freshwater and Saltwater Setups (SWF1) - Image 1](https://m.media-amazon.com/images/I/81I3XTUzx2L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Little Filter/Bubbler For The Price
*by S***H on November 1, 2019*

I wanted a small filter/bubbler for a 2 gallon fish bowl and decided to give this one a try because of the price and because it came with a pump. It was easy to set up and install. It stayed suctioned to the side of the glass with no problem. I like that it comes with a release valve so that you can control the amount of air flow. I read a lot of the other reviews where they mentioned too many bubbles - that's probably from not using the enclosed valve. I highly suggest using it if your tank is under 2 gallons. My set up is a 2 gallon fish bowl that's mostly an aqua scape of live plants, driftwood, and gravel. It has an outer heat lamp for the live plants. I'm going to leave about 2 to 3 inches at the top to allow for slight spatter from the bubbles. I do intend to add fish - probably two female bettas, or a few white cloud minnows. Being an aqua scape, I won't add more fish than that. Otherwise, it looks like the filter is going to work great for this set up. So far, so good.

### ⭐⭐⭐⭐⭐ Penn Plax Small World Aquarium Filter Review
*by M***A on July 17, 2013*

After having numerous problems with waterfall filters that suck up small fish and tadpoles, I found this product and would not have any other filter. I use it for my 10 gallon tank and it works very well. All you do is connect it to your aerator. There is no suction at all and no waterfall to toss my small fish around. It cleans the water and provides oxygen for your aquatic buddies. The filter cartridge is visible, so you know exactly when to change it. Not all pet stores carry this product, but it is well worth it to order the extra cartridges online (as you can find it for the same price you would in stores even with shipping). When I accidently threw away the cartridge holder, I went out of my way to find it again for the safety of my fish. However, if you have live tubifex worms, they will make a home out of the filter if it is too close to the ground so I recommend placing it high in your tank. But if it does happen and you don't want to kill them, slowly move the filter out of the water over the course of a day or two and they will wiggle their way out and back to the gravel. But anyways, I would definitely recommend this product for anyone.

### ⭐⭐⭐⭐⭐ I regretted it, then I loved it!!
*by T***G on January 24, 2024*

I did alot of research for slow flow betta filters and seen this one highly recommended and for the cost I ordered two sets for both my bettas. When I first hooked it up, the flow was crazy fast and I was so sad.. didn't even set up the second one because I was ready to return. I didn't see the part that you can add to the tubing to adjust the flow. Once I found that part when I set up the second one, I was AMAZED. Bettas don't like fast flows, almost no movement is their preference because more can stress and tear them up. This filter works amazing. I can slow it down to barely a bubble just enough and my bettas are so happy! I would definitely recommend these over any expensive pet store 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: 2026-02-28*