Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C

Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C

Q: does it work on 0.5 gallon tank with a betta

I use my PennPlax in a 5 gallon tank with a betta and it works great. I do partial water changes every 2 weeks. Are you asking if it works with a tank that hold 1/2 gallon? (0.5) If so, I would say NO. It is too strong for such a small space. Also, betta's should be kept in a MINIMUM 2.5; but 5 gal. or more is optimal, with heater and filter.

Q: I forgot to rinse it before installing it and all this white stuff came out-- is that okay? I'm only running it right now to cycle the tank (no fish.)

Hey Kristy, Thanks for your question. The white stuff you're seeing is just dust particles from the filter media. It won't have any negative effect on your tank. Just let it continue to cycle and all of the particles will be picked back up by the filter.

Q: How long is this filter and does it provide mechanical filtration?

It is about 4" long and works very well by pushing air/water through the filter material and charcoal. A good investment for small tank. (1-2) Gallon) Have been using one for about 15 years. Good product!!

Q: Will this work for a round bowl? No flat sides on mine

It can just lay on the bottom out of the way if your bowl is big enough. I have a little tank and just leave it without the suction cups and it works fine. You could also get a small sponge filter for your bowl. They both need an air pump to work and are about the same cost. Hope this helps.

4.6/5

Product ID: 294067216

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Details

Material
Other
Product Dimensions
28D x 28W x
Item Weight
5 g
External Testing Certification
WQA
Product Benefits
Removes clears

🌊Safe for fresh & saltwater tanks

🧪Dual chemical & biological filtration

⚙️Precision fit 28x28x104mm cartridges

Frequently Bought Together

Penn-Plax Small World Replacement Aquarium Filter Media (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C

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Description

🌟 Keep your aquarium flawless—because your aquatic world deserves the best!

PLUG PLAY REPLACEMENT - Effortless installation ensures your aquatic ecosystem stays healthy without downtime.
VERSATILE FOR EVERY TANK - Designed to fit Small World filters, perfect for both freshwater and saltwater enthusiasts.
CRYSTAL CLEAR WATER ALWAYS - Advanced carbon/zeolite combo eliminates discoloration and odors for pristine aquarium clarity.
DUAL ACTION FILTRATION POWER - Mechanical foam block plus chemical filtration tackles contaminants on all fronts.
TRUSTED QUALITY CERTIFIED SAFE - WQA-certified cartridges guarantee reliable performance and peace of mind.

Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) provide a high-quality, WQA-certified filtration solution combining carbon/zeolite chemical filtration with foam block mechanical and biological filtration. Sized precisely at 28x28x104mm, these cartridges are easy to install and safe for both freshwater and saltwater tanks, effectively removing contaminants, discoloration, and odors to maintain a healthy aquatic environment.

Specifications

Material	Other
Product Dimensions	28D x 28W x 104H Millimeters
Item Weight	0.01 Pounds
External Testing Certification	WQA
Product Benefits	Removes contaminants, clears discoloration, and reduces odors in aquariums
Brand	Penn-Plax
UPC	742117635224 030172390050
Global Trade Identification Number	00030172390050
Net Quantity	2.0 count
Number of Items	1
Manufacturer	Monster Pets
Country of Origin	USA
Item model number	SWF1C
ASIN	B00025655C

Have a Question? See What Others Asked

does it work on 0.5 gallon tank with a betta

I forgot to rinse it before installing it and all this white stuff came out-- is that okay? I'm only running it right now to cycle the tank (no fish.)

How long is this filter and does it provide mechanical filtration?

Will this work for a round bowl? No flat sides on mine

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