Fish Supplies

Penn Plax Sponge Bob Kit with filter, 1.5 gal.

SpongeBob's Krabby Patty Betta Kit! This plastic tank with lid comes with a fun top decor, background and stickers! This also includes an internal filter. more

Penn-Plax CIF10 Cascade 300 Internal Carbon Filter Cartridges

Replacement Carbon Filter Cartridge for CIF1 Internal Filter; Removes odor and discolorations keeps water fresh more

Penn-Plax Cascade 300 Fully Submersible Internal Aquarium Filter -5.75 in Length

Penn-Plax presents the Cascade 300 Fully Submersible Internal Filter. In addition to delivering crystal clear water throughout the aquarium this filter cycles water at 70 Gallons per Hour (GPH) for tanks up to 10 Gallons in size. It’s great for... more

Penn-Plax Cascade 700 Aquarium Canister Filter – 185 Gallons per Hour for tanks up to 65 Gal

Penn-Plax presents the Cascade 700 Canister Filter. Without effort the Cascade 700 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 185 Gallons per Hour and is recommended for aquariums up to 65... more

Penn Plax Clear-free Premium Under Gravel Aquarium Filter For 40 - 55 Gallon Tanks blue, Crystal | Wayfair CFU55

Those who’ve been around the aquatic block for a while know that Under Gravel Filters (UGFs) are a testament of time. This Filter is air driven and utilizes an Air Pump (not included) to cycle crystal clear water throughout your aquarium, while... more

Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 3.4 Gallon (10"H x 12"W x 8"D) | Wayfair WW110K

This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 7.5 Gallon (12"H x 16.5"W x 10.75"D) | Wayfair WW112K

This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

Penn-Plax Cascade 100 Power Filter – Hang-on Filter with Quad Filtration

Penn-Plax presents the Cascade 100 Power Hang-On Filter. This filter quietly delivers crystal clear water and pushes water at 100 Gallons per Hour (GPH) for tanks up to 20 Gallons in size. It’s great for Freshwater and Saltwater aquariums. Shop... more

Cascade Power Filter Bio-Sponge Cartridge Cascade 150 & 200 Sponge Cartridge (1 Pack)

Enhance the vitality of your aquarium ecosystem with Cascade Power Filter Bio-Sponge Cartridges. These durable bio-sponges serve as the perfect replacement solution to ensure your Cascade filter operates at its peak performance effortlessly... more

Penn-Plax Cascade 500 Aquarium Canister Filter – 115 Gallons per Hour

Penn-Plax presents the Cascade 500 Canister Filter. Without effort the Cascade 500 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 115 Gallons per Hour and is recommended for aquariums up to 30... more

Penn-Plax Premium Under Gravel Filter System for 40-55 Gallon Tanks

Provides powerful biological and chemical filtration Trouble free setup and operation Includes filter plates air stones adjustable lift tubes and filter cartridges Available for 5 10 15/20H 20L/29 40 / 55 gallon aquariums. BIOLOGICAL CHEMICAL AND... more

Penn-Plax Premium Under Gravel Aquarium Filter – for 15 – 20 Gallon Tanks - Biological Filtration

Penn-Plax presents the Clear-Free Premium Under Gravel Aquarium Filter. Those who’ve been around the aquatic block for a while know that Under Gravel Filters are a testament of time. This Filter is air driven and utilizes an Air Pump (not... more

Penn-Plax Clear-Free UnderGravel Aquarium-Filter – Suitable for 20 – 29 Gallon Tanks

Penn-Plax presents the Clear-Free Premium Under Gravel Aquarium Filter. Those who’ve been around the aquatic block for a while know that Under Gravel Filters are a testament of time. This Filter is air driven and utilizes an Air Pump (not... more

Penn Plax Water World Prism Replacement Filter Cartridges - 2 count

Enhance the clarity of your aquarium water effortlessly with Penn Plax Water World Prism Carbon Filter Cartridges. Designed specifically for the Prism system these replacement floss and carbon filter cartridges are the key to maintaining optimal... more

Penn-Plax Cascade Hang-on Aquarium Filter with Quad Filtration to 10 Gallon

Penn-Plax presents the Cascade 80 Power Hang-On Filter. This filter quietly delivers crystal clear water and pushes water at 80 Gallons per Hour (GPH) for tanks up to 10 Gallons in size. It’s great for Freshwater and Saltwater aquariums.... more

Penn-Plax Cascade 20 Power Filter – Mini Hang-on Filter for Aquariums up to 7 Gallons

Penn-Plax presents the Cascade 20 Mini Power Hang-On Filter. This filter quietly delivers crystal clear water and pushes water at 20 Gallons per Hour (GPH) for tanks up to 7 Gallons in size. It’s great for Freshwater and Saltwater Aquariums. Shop... more

Penn-Plax Cascade Max Flow Aquarium Canister Filter 820 Gallons per Hour

PENN-PLAX presents the Cascade Max Flow Canister Filter. Without effort this canister filter runs at a stunning 820 Gallons per Hour and is purposely designed for larger aquariums ranging from 164 to 273 gallons. Though optimal size is 205 gallons.... more

Penn-Plax Cascade Powered Nano Sponge Aquarium Filter – Black - 3

Cascade presents the Powered Aquarium Nano Sponge Filter by Penn-Plax. This sponge filter is specifically designed for aquariums that house fry shrimp and small fish. The two ribbed sponges trap floating debris without sucking up smaller or weaker... more

Penn-Plax Bio-Sponge Replacement Pads for Max Flow Canister Filter 2 Pack

Cascade presents Bio-Sponge Replacement Pads for Cascade Max Flow Canister Aquarium Filters. This 2-Pack of Cascade Bio-Sponge Pads is specially designed for Cascade Max Flow Canister Filters allowing for simple and easy media replenishment. Don not... more

Cascade Internal Filter Disposable Carbon Filter Cartridges

Fulfilled by our friends at Dog Hugs Cat Enhance the purity of your aquarium water effortlessly with the Penn-Plax Cascade 400 Disposable Carbon Filter Cartridges. Designed as compatible replacements for the Cascade Internal Filter these disposable... more

Penn-Plax Cascade 300 Submersible Aquarium Filter Cleans Up to 10 Gallons

The Cascade 300 Submersible Filter quietly delivers crystal clear water throughout the aquarium. This filter cycles water at 70 Gallons per Hour (GPH) for tanks up to 10 Gallons in size. It’s great for Freshwater and Saltwater aquariums along with... more

Penn-Plax Cascade Nano Aquarium Filter & Air Pump Kit for Bettas – Filtration Perfect For Small Fish

Cascade presents the Nano Aquarium Filter & Air Pump Kit by Penn-Plax. This kit is specifically designed for smaller aquariums and Betta tanks. While air is quietly directed into the air stone water is softly suctioned through the Mini Sponge Filter... more

PENN-PLAX Small World Fishbowl Under-Gravel Filter Kit – Comes with a Disposable Media Cartridge Air Pump Air Tubing and Air Stone Multicolor (EPSWF2)

PENN-PLAX Small World Fishbowl Under-Gravel Filter Kit – Comes with a Disposable Media Cartridge Air Pump Air Tubing and Air Stone Multicolor (EPSWF2) PENN-PLAX presents the Small World Fishbowl Under-Gravel Filter Kit. This kit is specifically... more

Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups (Model: CPF6)

Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups (Model: CPF6) Penn-Plax presents the Cascade 20 Mini Power Hang-On Filter. This filter quietly delivers crystal clear water... more

Penn-Plax Cascade Hang-on Aquarium Power Filter 150 with 9 Replacement Filter Cartridges

Penn Plax Cascade Hang-On Power Filter 150 and Penn Plax Cascade hang on power replacement filter cartridge pack of 9. The Cascade 150 Power Hang-On Filter quietly delivers crystal clear water throughout the aquarium. This filter pushes water at 150... more

Penn-Plax Filtrx Purifying Media for Canister Filters – Compatible with Cascade Marlin and Other Aquarium Filter Systems with Trays – Activated Carbon (CFSCB1)

Penn-Plax Filtrx Purifying Media for Canister Filters – Compatible with Cascade Marlin and Other Aquarium Filter Systems with Trays – Activated Carbon (CFSCB1) Penn-Plax presents Filtrx Purifying Media with Activated Carbon. This specially... more

Penn-Plax Six (6) Replacement Filter Cartridges for BT1 Betta Tank Aquarium Kit 1.5 Gallon

These cartridges have been specifically designed to fit the filter used in the BT1 aquarium so all you need to do is switch out the old one and replace it with one of these. Penn-Plax manufacturer & distributor of top Pet Supplies Penn-Plax is a... more

(2 pack) Penn-Plax Cascade Nano Aquarium Filter & Air Pump Kit for Bettas – Filtration Perfect For Small Fish

Cascade presents the Nano Aquarium Filter & Air Pump Kit by Penn-Plax. This kit is specifically designed for smaller aquariums and Betta tanks. While air is quietly directed into the air stone water is softly suctioned through the Mini Sponge Filter... more

Penn-Plax Decorative Striped Rock Bubble Aquarium Filter Filtration Set - 10 Gallon Tanks

The Penn-Plax Rock Filter is an innovative aquarium bubble filtration system cleverly disguised as a naturalistic rock. This product seamlessly combines aesthetic appeal with functionality serving as aquatic essential equipment. Its two-piece design... more

Penn-Plax CCF221 Cascade Canister Filter Replacement Media Basket Joint Seal

Penn Plax is a name that stands for Quality Innovation and Integrity In the Pet Industry for over 50 years Experience a great line of Pet Products in all categories! Penn-Plax is committed to creating and manufacturing innovative pet products for... more

Penn Plax Small World Pump and Filter Kit

Small world aquarium filters are specifically designed for small aquariums. Quick & easy to install, small world aquarium filters keep your water crystal clear while eliminating contaminants and maintaining a healthy environment for your fish. more

Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 10 Gallon (13"H x 18.5"W x 12.5"D) | Wayfair WW113K

This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 5 Gallon (11.5"H x 14.5"W x 9.35"D) | Wayfair WW111K

This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 3.4 Gallon (10"H x 12"W x 8"D) | Wayfair WW110K

This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

Penn Plax Premium Under Gravel Aquarium Filter for 20 & 29 Gallon Tanks 17.0 H x 28.0 W x 11.1 D in blueAcrylic (shatterproof w/ great clarity) | Wayfair

Those who’ve been around the aquatic block for a while know that Under Gravel Filters (UGFs) are a testament of time. This Filter is air driven and utilizes an Air Pump (not included) to cycle crystal clear water throughout your aquarium, while... more

Penn Plax Cascade Max Flow Aquarium Canister Filter 23.6 H x 16.6 W x 15.0 D in black/gray (shatterproof w/ great clarity) in White | Wayfair CMF1

Without effort the Cascade Max Flow Canister Filter runs at a stunning 820 Gallons per Hour, and is purposely designed for larger aquariums, ranging from 164 to 273 gallons. Though, optimal size is 205 gallons. It’s compatible for both freshwater... more

Penn Plax Cascade 200 Power Hang-On Aquarium Filter 6.75 H x 7.25 W x 4.75 D, Crystal in Black/Blue | 4.75" L x 7.25" W x 6.75" H | Wayfair CPF4

The Cascade 200 quietly delivers crystal clear water, and pushes water at 185 Gallons per Hour (GPH) for tanks up to 55 Gallons in size. It’s great for Freshwater and Saltwater Aquariums. Accommodating: The adjustable flow knob allows for increased... more

Penn Plax 150 Power Hang-On Aquarium Filter 6.75 H x 7.25 W x 4.75 D, Crystal in Black/Blue | 4.75" L x 7.25" W x 6.75" H | Wayfair CPF3

The 150 quietly delivers crystal clear water, and pushes water at 150 Gallons per Hour (GPH) for tanks up to 35 Gallons in size. It’s great for Freshwater and Saltwater aquariums. Accommodating: The adjustable flow knob allows for increased or... more