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94% positive over last 12 months
Penn-Plax Small World Aquarium Filter – Comes with a Disposable Media Cartridge (Bio Sponge, Carbon, and Zeolite Crystals) – Safe for Freshwater and Saltwater Setups (SWF1)
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
- 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: 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.
- 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.
- 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.
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From the manufacturer
Replacement Filter Media Cartridges are also available. Please See chart below.
PENN-PLAX, manufacturer & distributor of top Pet Supplies
PENN-PLAX is a family owned business that was established in 1956 in Brooklyn, New York. Over the years, our goal remains the same: to enhance the pet ownership experience.
We specialize in creating excellent pet supplies for animals, both great and small. We're best known for producing pet products at affordable prices. Our brand is synonymous with innovation and quality, keeping your pet foremost in mind.
PENN-PLAX Small World Aquarium Filter for Aquariums, Tanks, Fishbowls, and Habitats
Provides Crystal Clear Filtered Water for Smaller Setups (up to 5 gallons)
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.
This filter does not come with Air Tubing or an Air Pump, which are Sold Separately.
- 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, a Disposable Media Cartridge, and a Connector that allows easy connection to standard size air tubing.
Take a Closer Look at the Small World Aquarium Filter - Model Number: SWF1
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Ideal for Small HabitatsWhether you’re looking to add filtration to a fishbowl, small aquarium, or a plastic habitat, the Small World Aquarium Filter provides a comprehensive filtering solution. To be honest, no one likes doing water changes. The Small World Aquarium Filter reduces the overall time and frequency of water changes, while still ensuring a healthy and clean environment for your fish. |
Easy-To-Use and ReliableThe directions are very simple:
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3 Stage FiltrationThe Small World Aquarium Filter features biological, chemical and physical filtration to actively and effectively filter your aquarium, tank, fishbowl, or habitat. This filter uses Disposable Filter Media Cartridges that contain, Carbon, Zeolite, and a Bio Sponge. |
Fits All Shapes and SizesModern tanks come in globes, with rounded corners, or smaller sized panels. As the creatively continues with these designs, mounting an aquarium filter becomes an issue. But with the narrow profile of the Small World Filter, even the smallest of areas is no issue for this little filtration unit! |
Keep Reading for Additional Details
Carbon & Zeolite Mixture:
- Supercharged with scientifically formulated Carbon and Zeolite Crystals, the media cartridge 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.
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:
- Mounting Bracket (1.5” x 1.25” x 5”)
- Media Cartridge (1.3” x 1.1” x 4.1”)
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Customer Reviews |
4.2 out of 5 stars
2,556
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4.2 out of 5 stars
2,556
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4.1 out of 5 stars
429
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4.1 out of 5 stars
429
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4.2 out of 5 stars
2,556
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Model Number | SWF1 | SWF1C | SWF2 | SWF2C | SWK1UL |
Item Type | Small World Filter | Small World Replacement Filter Media Cartridges | Small World Fishbowl Under-Gravel Filter Kit | Small World Replacement Fishbowl Under-Gravel Filter Media Cartridges | Small World Aquarium Air Pump and Filter Kit |
Item Description | The Small World Filter is specifically designed for aquariums, tanks, and habitats up to 5 gallons. This filter does not come with Air Tubing or an Air Pump, which are Sold Separately. | These Replacement Media Cartridges are specifically designed for Small Word Filters (Model SWF1), allowing for simple and easy media replenishment, and are for aquariums, tanks, and habitats up to 5 gallons. Cartridges come in a 2 pack. | The Small World Fishbowl Under-Gravel Filter Kit is specifically designed for all drum or round bowls with a 4” or larger opening, providing a health and clean environment for your fish. Ideal for fishbowls and cylindrical aquariums. | These Replacement Media Cartridges are specifically designed for Small Word Fishbowl Filters (Model SWF2), allowing for simple and easy media replenishment. Cartridges come in a 2 pack. | The Small World Air Pump and Filter Kit is specifically designed for aquariums and tanks up to 5 gallons. This Kit comes with an Air Pump, Air Tubing, a Control Valve, a Filter Mount with Connector, and a Filter Media Cartridge. |
Product guides and documents
Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 6 x 2 x 6 inches; 2.88 ounces
- Item model number : SWF1
- Department : Unisex-Adult
- Date First Available : August 3, 2004
- Manufacturer : Penn Plax
- ASIN : B0002565KC
- Country of Origin : China
- Best Sellers Rank: #12,942 in Pet Supplies (See Top 100 in Pet Supplies)
- #167 in Aquarium Filters
- Customer Reviews:
Looking for specific info?
Product 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”).
Important information
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.
Compare with similar items
This Item Penn-Plax Small World Aquarium Filter – Comes with a Disposable Media Cartridge (Bio Sponge, Carbon, and Zeolite Crystals) – Safe for Freshwater and Saltwater Setups (SWF1) | Recommendations | dummy | dummy | dummy | dummy | |
Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | |
Price | $10.44$10.44 | $9.89$9.89 | $12.99$12.99 | $9.99$9.99 | -29% $9.99$9.99 List: $13.99 | $9.99$9.99 |
Delivery | Get it as soon as Wednesday, Apr 3 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 |
Customer Ratings | ||||||
Noise level | 3.8 | 3.9 | 3.8 | 3.0 | 4.6 | 4.1 |
Suction power | 3.7 | 4.2 | 3.3 | 3.4 | 4.6 | 4.0 |
Value for money | 3.9 | 3.5 | 2.8 | 3.0 | 4.3 | — |
Easy to clean | — | 4.2 | 3.6 | 4.1 | 4.7 | 4.2 |
Sold By | Amazon.com | NICREW | usmagob | Relaxbuty | NICREW | linghangshuizu |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the size and effectiveness of the filter. For example, they mention it's great for small fish tanks and doesn't take up much space. Customers also like the value, ease of use, and quality. That said, opinions are mixed on noise, cleanliness, and clarity.
AI-generated from the text of customer reviews
Customers like the quality of the water filter. They say it works well, is silent, and is perfect for regulating bubble volume. Customers are also satisfied with its durability and ease of use.
"...This filter works amazing. I can slow it down to barely a bubble just enough and my bettas are so happy!..." Read more
"I’ve used these before and am very satisfied with their durability and ease of use." Read more
"...The pump worked good for six weeks and then it died. I guess you get what you pay for..." Read more
"...This little air driven filter was the perfect solution. It works well and was very easy to install. The one downside is the media is not removable...." Read more
Customers like the filter. They say it's an effective filter, perfect for a beta tank, and suited for nitro aquariums. The filters work great in trapping debris and filtering the water. Some mention that it'll work fine for their needs.
"...I think this is a great filter for my tank which is 1.6 gallons and didn't come with a filter. Very small doesn't take up to much room in his tank...." Read more
"...These filters are amazing! The kit comes with everything you would need and installs easily...." Read more
"...Regardless, great little filter!" Read more
"This is a really nice filter suited for a nano aquarium. The only downside is that the cartridge is disposable and isn't designed to be opened...." Read more
Customers like the size of the filter. They say it's perfect for small fish tanks and doesn't take up much space. Some say it is easy to assemble and fits nicely in a fish bowl. Overall, most are satisfied with the size and functionality of the product.
"...My bowl is ~3 gallons and it doesn't take up much space, still plenty of room for plants and decor...." Read more
"...They work great in a five gallon tank but I can't get past all the plastic waste." Read more
"...Probably great for beginner fish keepers who are not in tune to the nitrogen cycle, though...." Read more
"This filter is the perfect size for my 2-gallon fish tank...." Read more
Customers like the value of the water filter. They say it's inexpensive, the best little filter money can buy, and the replacement filters and cartridges are affordable. Customers also say it auctions to the side.
"...to go with it as I have the pump lower than the tank, but they are super cheap and easy to find online...." Read more
"What a great little filter for the price!My daughters got little 2 gallon tanks made by Top Fin...." Read more
"...Edit: filter media is super cheaper. It's already worn out, bubbles come out slowly. I've added more pictures here...." Read more
"...with easy modification it becomes the most efficient and affordable small tank filter money can buy!" Read more
Customers find the potable water filter easy to setup, maintain, and use. They mention that it's simple, inexpensive, and effective. Customers also appreciate the compact size and the ability to swap out filters easily.
"...The set up was super quick and easy...." Read more
"...The kit comes with everything you would need and installs easily...." Read more
"...used these before and am very satisfied with their durability and ease of use." Read more
"...It is simple to set up, the filter works great for keeping the tank clean, it sticks to the side of the tank easily, and makes little noise...." Read more
Customers are mixed about the noise of the water filter. Some mention that it's super quiet, while others say that it makes a loud popping noise. Some customers also mention that the bubbles are noisy. Overall, opinions are mixed and depend on the individual user.
"...Don't see how water even goes into the filter and it is all around very very noisy which is annoying since the tank has to be in our bedroom...." Read more
"...The pump is small and super quiet, I have it in my bedroom and have no trouble sleeping with it running, the ceiling fan acctually makes more noise...." Read more
"...I'd give it five stars but the air pump is a little loud, but that's also expected for the low price." Read more
"...the tank clean, it sticks to the side of the tank easily, and makes little noise...." Read more
Customers are mixed about the cleanliness of the filter. Some mention it does a wonderful job of keeping the tank clean, is easy to clean, and works well in a small tank. However, others say that it gets dirty kinda fast, can't be cleaned, and can're not effective at cleaning or aerating the water.
"...It is simple to set up, the filter works great for keeping the tank clean, it sticks to the side of the tank easily, and makes little noise...." Read more
"...The tank was filthy within a couple of days and I had brown algae and cloudy water...." Read more
"The filter keeps my tank clean and does a good job. However the air pump is a little louder than expected, especially if the tank is in your room...." Read more
"...day of running it the tank is just as cloudy and our poor fish is still swimming in filth and hopefully won't die before a different filter we..." Read more
Customers are mixed about the clarity of the water filter. Some mention that it keeps the tank crystal clear, while others say that it works well and keeps the water clear. Some say that the water is a little cloudy when they first put it in, while other say that in five days the bowl goes back to looking cloudy.
"...And with in a half hour of running I could tell the water clarity was getting better...." Read more
"...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...." Read more
"...With this do-it-yourself refill setup water stays crystal clear and it will catch large and small particles with ease...." Read more
"...we have this filter, the fish have been very healthy and the water much clearer...." Read more
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