One of the best ways to keep your freshwater aquarium clean is through the use of an under gravel filter. The idea is that bubbles will draw waste and debris to the bottom of the tank where your cleanup crew (snails, plecos, etc) can take care of it. Whatever they don’t get can easily be removed by you, using a siphon.

Our available under gravel filters are listed below:


Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – Two 14” x 11.1” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks
16.99 15.82 click here to buy Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – Two 14” x 11.1” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks


Penn-Plax Undergravel Aquarium Filter for 15-20 (high) Gallon Tanks – Two 11.2” x 11.25” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks
14.44 14.44 click here to buy Penn-Plax Undergravel Aquarium Filter for 15-20 (high) Gallon Tanks – Two 11.2” x 11.25” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks


Penn-Plax Undergravel Aquarium Filter for 10 Gallon Tanks – Two 9.5” x 9.5” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks
11.99 11.99 click here to buy Penn-Plax Undergravel Aquarium Filter for 10 Gallon Tanks – Two 9.5” x 9.5” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks


Penn-Plax Replacement Media (2 Pack) – Fits Multi-Pore and Undergravel “E” Filters – Provides Chemical Filtration (FC2)
5.2 5.2 click here to buy Penn-Plax Replacement Media (2 Pack) – Fits Multi-Pore and Undergravel “E” Filters – Provides Chemical Filtration (FC2)


TEHAUX Hexagon Aquarium Undergravel Filter Tank 20pcs Convenient Fish Tank Bottom Filter Plate PVC Splicing Clapboard Bottom Filter (Black) Fish Tank Divider Aquarium Stand
34.29 34.29 click here to buy TEHAUX Hexagon Aquarium Undergravel Filter Tank 20pcs Convenient Fish Tank Bottom Filter Plate PVC Splicing Clapboard Bottom Filter (Black) Fish Tank Divider Aquarium Stand


Penn-Plax Filt-a-Carb Universal Carbon Undergravel Filter Cartridge, 3 Packs of 2 each
29.99 29.99 click here to buy Penn-Plax Filt-a-Carb Universal Carbon Undergravel Filter Cartridge, 3 Packs of 2 each


Totority Aquarium Substrate - 40Pcs Under Gravel Aquarium Plates Fish Tank Bottom Plate Splicing Combination Clapboard Undergravel 55 Gallon
39.89 39.89 click here to buy Totority Aquarium Substrate - 40Pcs Under Gravel Aquarium Plates Fish Tank Bottom Plate Splicing Combination Clapboard Undergravel 55 Gallon


PENN-PLAX Small World Fishbowl Under-Gravel Filter Kit – Comes with a Disposable Media Cartridge, Air Pump, Air Tubing, and Air Stone, Multicolor (EPSWF2)
16.99 16.99 click here to buy PENN-PLAX Small World Fishbowl Under-Gravel Filter Kit – Comes with a Disposable Media Cartridge, Air Pump, Air Tubing, and Air Stone, Multicolor (EPSWF2)


XMHF Aquarium Fish Tank Undergravel Filter Board Air Tube 32pcs Black
32.29 32.29 click here to buy XMHF Aquarium Fish Tank Undergravel Filter Board Air Tube 32pcs Black


Lee's 5-1/2 Premium Undergravel Filter, 8-Inch by 16-Inch
29.31 29.31 click here to buy Lee's 5-1/2 Premium Undergravel Filter, 8-Inch by 16-Inch