Fish Supplies › Penn Plax › 20 gal aquarium

Penn-Plax Large Fish Tank Divider for Aquariums - Clear Perforated Polymer Screen - 11-3/8 x 11-3/8 Large for 15 - 20 Gallon

Penn-Plax Tank Dividers instantly convert one aquarium into two! Quick and easy to install these polymer screen dividers are great for creating breeding tanks or for separating rough fish. Made to fit most tanks up to 20 gallons in size with dimensions... more

Cascade 500 Aquarium Canister Filter, 115 GAL

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 gallons. It's compatible for both freshwater and... more

Cascade 1000 Aquarium Canister Filter, 265 GAL

Without effort, the Cascade 1000 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 265 Gallons per Hour, and is recommended for aquariums up to 100 gallons. It's compatible for both freshwater and... more

Cascade 700 Aquarium Canister Filter, 185 GAL

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 gallons. It's compatible for both freshwater and... more

Penn Plax Round Aquarium Tank in Black | 15.75 H x 20.15 W x 20.25 D in | Wayfair AS361

In addition to their sleek and modern design, these bowl-shaped tanks are constructed from scratch-resistant polycarbonate. They’re great for Freshwater and Saltwater setups. The included water pump has a max flow rate of 63.40 gallons per hour. Even... more

Penn Plax Aquarium Decoration in Brown/Red | 16 H x 20.5 W x 20.75 D in | Wayfair RR961

Deco-Replicas presents the Large 2-Piece Striped Sail Shipwreck Aquarium Decoration by PENN-PLAX. Add some ominous charm and wonder to your fish tank with the 2-Piece Striped Sail Shipwreck! This fully detailed aquarium decoration makes for a great and... more

Penn Plax 20 Power Hang-On Aquarium Filter, Crystal in Black/Blue | 4.5 H x 3.75 W x 3 D in | Wayfair CPF6

The Cascade 20 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. Accommodating: The adjustable flow knob allows for increased or... more

Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration 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 Air-Tech Aquarium Air Pump – Single Outlet – Blue – up to 20 Gallons

Penn-Plax presents the impressively quiet line of Air-Tech Aquarium Air Pumps. The AT2K2 model quietly aerates and oxygenates fish tanks up to 20 gallons in size. It comes equipped with a single outlet that accepts standard 3/16� airline tubing. It... more

Penn-Plax Clear-Free Premium Under Gravel Aquarium Filter – for 15 – 20 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 included)... more

Penn-Plax Clear-Free Under Gravel 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 included)... more

Penn Plax Claws Tank Tongs for Aquarium Planting Landscaping and Removing Debris

Penn Plax Claws Tank Tongs - - Claws Tank Tongs are the perfect way to clean your aquarium without getting your hands wet. Ideal for planting aquascaping redecorating removing debris and reptile feeding.Features Claw Tank Tong Dimensions - 20 in. Long... more

Penn-Plax Cascade 400 Fully Submersible Internal Aquarium Filter

Penn-Plax presents the Cascade 400 Fully Submersible Internal Filter. In addition to delivering crystal clear water throughout the aquarium this filter cycles water at 110 Gallons per Hour (GPH) for tanks up to 20 Gallons in size. It’s great for... more

Penn Plax Claws Tank Tongs for Aquarium Planting Landscaping and Removing Debris

Penn Plax Claws Tank Tongs are the perfect way to clean your aquarium without getting your hands wet. Ideal for planting aquascaping redecorating removing debris and reptile feeding. Claw Tank Tong Dimensions - 20 Long Rugged and Durable Tank Tongs... more

Cascade 20 Power Filter Replacement Carbon Filter Cartridges

The Cascade 20 Power Filter Replacement Carbon Filter Cartridges are a disposable carbon replacement cartridge designed to fit the Cascade 20 Filter. Keep your aquariums water crystal clear by changing your Cascade Filter cartridges regularly. Quick... 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

Penn Plax Clear-Free Premium Under Gravel Aquarium Filter for 20 & 29 Gallon Tanks Acrylic (shatterproof w/ great clarity), in Blue | Wayfair CFU29

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 keeping... more

Penn Plax Cascade 1500 Aquarium Canister Filter – 350 Gallons Per Hour (gph), Crystal | 20.5 H x 11.5 W x 12 D in | Wayfair CCF5UL

Without effort, the Cascade 1500 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 350 Gallons per Hour, and is recommended for aquariums up to 200 gallons. It’s compatible for both freshwater and... more

Penn Plax 100 Power Hang-On Aquarium Filter Acrylic (shatterproof w/ great clarity), Crystal in Black/Blue | Wayfair CPF2

The cascade 100 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. Accommodating: the adjustable flow knob allows for increased or... more

Penn Plax Aquarium Accessory | 14.5 H x 16.5 W x 5.25 D in | Wayfair RR963

Add some ominous charm and mischief to your fish tank! This fully detailed aquarium decoration makes for a great centerpiece, and is perfect for anything pirate themed! This piece fits comfortably inside 20+ gallon tanks! Made of safe and durable... more

Penn Plax Aquarium Internal Filter, Crystal in Black/Blue | 9.5 H x 2.5 W x 2.75 D in | Wayfair CIF2

In addition to delivering crystal clear water throughout the aquarium, the Cascade 400 cycles water at 110 Gallons per Hour (GPH) for tanks up to 20 Gallons in size. It’s great for Freshwater and Saltwater aquariums, along with a variety of Terrarium... more

Penn Plax Aquarium Accessory, Crystal in Black/Blue | 11 H x 3.75 W x 2 D in | Wayfair CIF21

This filter quietly delivers crystal clear water throughout the aquarium. Its unique design allows it to unobtrusively utilize unused corner space. Furthermore, it cycles water at 120 gallons per hour (gph) for fish tanks up to 20 gallons in size. It’s... more

Penn Plax Aquarium Decoration Wood (best for furniture style stands) in Blue/Brown | 5.3 H x 14.8 W x 10 D in | Wayfair RR3106

RECOMMENDED FOR A LARGE TANK: we recommend the Under Water Oasis for aquariums 20-30 gallons in size or larger. The product measures 14.25 x 8 x 15 inches, so please measure your tank and make sure that there’s room in it before purchasing. FULLY... more

Striped Pirate Ship, 20.5" L X 20.75" W, Large, Brown / Red

The Penn Plax Large Shipwreck replicates a sunken ship that lays on a rock deep in the ocean waiting to be discovered. The vibrant red, white, and green sails add a splash of color to your aquarium and offer visual interest. more

Penn Plax 1200 Canister Filter, Crystal in Blue | 20.5 H x 11.5 W x 11 D in | Wayfair CCF4UL

Without effort, the 1200 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 315 Gallons per Hour, and is recommended for aquariums up to 150 gallons. It’s compatible for both freshwater and saltwater... more