Filters Corner and Sponge

Lees Triple-Flow Corner Filters are uniquely designed with 3 intake vents to provide maximum efficiency. This versatile filter may be used for biological, chemical, or mechanical filtration, depending on the media chosen for use in the filter. May also be used as the fundamental or back-up filter.

• Great for breeder tanks, isolation tanks and for beginner aquarists
• Triple Flow Corner Filters available in different sizes
• Requires an air pump - air pumps sold separately

Specifications:
Small: Filters up to 45 GPH (3.25"L x 3.25"W x 5"H)
Medium: Filters up to 75 GPH (3.5"L x 3.5"W x 5.5"H)
Large: Filters up to 100 GPH (4"L x 4"W x 6"H)

Lees Triple-Flow Corner Filters are uniquely designed with 3 intake vents to provide maximum efficiency. This versatile filter may be used for biological, chemical, or mechanical filtration, depending on the media chosen for use in the filter. May also be used as the fundamental or back-up filter.

• Great for breeder tanks, isolation tanks and for beginner aquarists
• Triple Flow Corner Filters available in different sizes
• Requires an air pump - air pumps sold separately

Specifications:
Small: Filters up to 45 GPH (3.25"L x 3.25"W x 5"H)
Medium: Filters up to 75 GPH (3.5"L x 3.5"W x 5.5"H)
Large: Filters up to 100 GPH (4"L x 4"W x 6"H)

Lees Triple-Flow Corner Filters are uniquely designed with 3 intake vents to provide maximum efficiency. This versatile filter may be used for biological, chemical, or mechanical filtration, depending on the media chosen for use in the filter. May also be used as the fundamental or back-up filter.

• Great for breeder tanks, isolation tanks and for beginner aquarists
• Triple Flow Corner Filters available in different sizes
• Requires an air pump - air pumps sold separately

Specifications:
Small: Filters up to 45 GPH (3.25"L x 3.25"W x 5"H)
Medium: Filters up to 75 GPH (3.5"L x 3.5"W x 5.5"H)
Large: Filters up to 100 GPH (4"L x 4"W x 6"H)

Lees Economy Corner Filter is ideal for small aquariums and aquarium kits. Lees low-cost, high-quality Economy Corner filter keeps tanks sparkling clean without the use of an airstone.

• Keeps aquariums up to 10 gallons sparkly clean
• The basket insert is injection-molded to eliminate unstable tubes
• Corner Filter Dimensions - 3"L x 3"W x 3.5"H

Aquarium Solutions Bacto-Surge Foam Filters provide exceptional biological and mechanical filtration, using the highest quality foam sponge available to provide ample surface area for beneficial bacteria. A unique air dispersion design pulls water through at a higher rate for thorough filtration

• Exceptional foam sponge quality supports efficient bio-filtration
• Large surface area supports increased beneficial bacteria populations
• Helps break down aquarium waste and remove suspended debris
• Ideal mechanical and biological filter for small-to-medium tanks

Bacto-Surge filters feature higher foam density per square inch to provide maximum surface area for the beneficial bacteria that eliminate organic waste from your aquarium water. These filters also feature a unique air dispersion design that maximizes uplift to pull water through at a high rate, meaning more water runs through the filter in less time. Locking internal connectors prevent separation during use, and a heavy base keeps the sponge filter firmly secured.

Specifications:
Mini

• Aquariums: Up to 10 gallons
• Dimensions: 1.77"H x 2.17"D

Small:

• Aquariums: Up to 40 gallons
• Dimensions: 2"H x 4.75"D

Large:

• Aquariums: Up to 75 gallons
• Dimensions: 4"H x 4.5"D

X-Large:

• Aquariums: Up to 125 gallons
• Dimensions: 5.75"H x 6.25"D

Ideal for:
Nano aquariums
Smaller freshwater aquariums
Breeding tanks
Fry holding tanks
Quarantine tanks
Slow-moving fish like Discus
Saltwater polishing

Important: Requires an air pump, airline tubing, and/or powerhead for operation (sold separately).

Aquarium Solutions Bacto-Surge Foam Filters provide exceptional biological and mechanical filtration, using the highest quality foam sponge available to provide ample surface area for beneficial bacteria. A unique air dispersion design pulls water through at a higher rate for thorough filtration

• Exceptional foam sponge quality supports efficient bio-filtration
• Large surface area supports increased beneficial bacteria populations
• Helps break down aquarium waste and remove suspended debris
• Ideal mechanical and biological filter for small-to-medium tanks

Bacto-Surge filters feature higher foam density per square inch to provide maximum surface area for the beneficial bacteria that eliminate organic waste from your aquarium water. These filters also feature a unique air dispersion design that maximizes uplift to pull water through at a high rate, meaning more water runs through the filter in less time. Locking internal connectors prevent separation during use, and a heavy base keeps the sponge filter firmly secured.

Specifications:
Mini

• Aquariums: Up to 10 gallons
• Dimensions: 1.77"H x 2.17"D

Small:

• Aquariums: Up to 40 gallons
• Dimensions: 2"H x 4.75"D

Large:

• Aquariums: Up to 75 gallons
• Dimensions: 4"H x 4.5"D

X-Large:

• Aquariums: Up to 125 gallons
• Dimensions: 5.75"H x 6.25"D

Ideal for:
Nano aquariums
Smaller freshwater aquariums
Breeding tanks
Fry holding tanks
Quarantine tanks
Slow-moving fish like Discus
Saltwater polishing

Important: Requires an air pump, airline tubing, and/or powerhead for operation (sold separately).

Aquarium Solutions Bacto-Surge Foam Filters provide exceptional biological and mechanical filtration, using the highest quality foam sponge available to provide ample surface area for beneficial bacteria. A unique air dispersion design pulls water through at a higher rate for thorough filtration

• Exceptional foam sponge quality supports efficient bio-filtration
• Large surface area supports increased beneficial bacteria populations
• Helps break down aquarium waste and remove suspended debris
• Ideal mechanical and biological filter for small-to-medium tanks

Bacto-Surge filters feature higher foam density per square inch to provide maximum surface area for the beneficial bacteria that eliminate organic waste from your aquarium water. These filters also feature a unique air dispersion design that maximizes uplift to pull water through at a high rate, meaning more water runs through the filter in less time. Locking internal connectors prevent separation during use, and a heavy base keeps the sponge filter firmly secured.

Specifications:
Mini

• Aquariums: Up to 10 gallons
• Dimensions: 1.77"H x 2.17"D

Small:

• Aquariums: Up to 40 gallons
• Dimensions: 2"H x 4.75"D

Large:

• Aquariums: Up to 75 gallons
• Dimensions: 4"H x 4.5"D

X-Large:

• Aquariums: Up to 125 gallons
• Dimensions: 5.75"H x 6.25"D

Ideal for:
Nano aquariums
Smaller freshwater aquariums
Breeding tanks
Fry holding tanks
Quarantine tanks
Slow-moving fish like Discus
Saltwater polishing

Important: Requires an air pump, airline tubing, and/or powerhead for operation (sold separately).

Aquarium Solutions Bacto-Surge Foam Filters provide exceptional biological and mechanical filtration, using the highest quality foam sponge available to provide ample surface area for beneficial bacteria. A unique air dispersion design pulls water through at a higher rate for thorough filtration

• Exceptional foam sponge quality supports efficient bio-filtration
• Large surface area supports increased beneficial bacteria populations
• Helps break down aquarium waste and remove suspended debris
• Ideal mechanical and biological filter for small-to-medium tanks

Bacto-Surge filters feature higher foam density per square inch to provide maximum surface area for the beneficial bacteria that eliminate organic waste from your aquarium water. These filters also feature a unique air dispersion design that maximizes uplift to pull water through at a high rate, meaning more water runs through the filter in less time. Locking internal connectors prevent separation during use, and a heavy base keeps the sponge filter firmly secured.

Specifications:
Mini

• Aquariums: Up to 10 gallons
• Dimensions: 1.77"H x 2.17"D

Small:

• Aquariums: Up to 40 gallons
• Dimensions: 2"H x 4.75"D

Large:

• Aquariums: Up to 75 gallons
• Dimensions: 4"H x 4.5"D

X-Large:

• Aquariums: Up to 125 gallons
• Dimensions: 5.75"H x 6.25"D

Ideal for:
Nano aquariums
Smaller freshwater aquariums
Breeding tanks
Fry holding tanks
Quarantine tanks
Slow-moving fish like Discus
Saltwater polishing

Important: Requires an air pump, airline tubing, and/or powerhead for operation (sold separately).

Aquatop CAF Classic Aqua Flow Sponge Filters make maintenance of your home aquarium more convenient than ever. Sponge filters have been hobbyist, breeder, and hatchery favorites for decades, providing simple, efficient biological and mechanical filtration with less maintenance than traditional filters.

• A simple, classic, economical aquarium filter
• Tested by breeders and hatcheries for decades
• Less maintenance than traditional filters
• Fast and easy cleaning

Aquatop Classic Sponge Filters feature specially-developed foam material that supports the colonization of beneficial bacteria, providing mechanical and biological filtration. The bio-filtration process breaks down toxic ammonia and nitrites, preserving a clean, healthy habitat for your fish. CAF sponge filters are weighted and easy to install with an air pump or powerhead (sold separately), which provides airlift for silent operation. CAF filters may be used as stand-alone, breeding, or secondary filters, and will fit most external or top filters to act as pre-filtration units.

Directions: When performing routine maintenance, save a portion of removed aquarium water in a fish-safe container. Disassemble the sponge filter and separate the sponge from the hardware. Use the saved aquarium water to clean the sponge. Squeeze it, shake it, and rinse it out in the fish-safe container. When the sponge looks clean, reassemble the sponge filter and reinstall.

Specifications:
CAF-10:

• Aquariums up to 10 gallons
• 60 pores/linear inch
• Diameter: 2" (base); 2" (sponge)
• Uplift tube height: 1.5"
• Sponge height: 1.75"
• Full height: 3.5"
• Uplift I/D: 9/16"

CAF-25:

• Aquariums up to 25 gallons
• 40 pores/linear inch
• Diameter: 2.75" (base); 3.125" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-40:

• Aquariums up to 40 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-60:

• Aquariums up to 60 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 5.5"
• Full height: 8.5"
• Uplift I/D: 3/4"

CAF-180:

• Aquariums up to 180 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 6.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

CAF-250:

• Aquariums up to 250 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 8.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

Aquatop CAF Classic Aqua Flow Sponge Filters make maintenance of your home aquarium more convenient than ever. Sponge filters have been hobbyist, breeder, and hatchery favorites for decades, providing simple, efficient biological and mechanical filtration with less maintenance than traditional filters.

• A simple, classic, economical aquarium filter
• Tested by breeders and hatcheries for decades
• Less maintenance than traditional filters
• Fast and easy cleaning

Aquatop Classic Sponge Filters feature specially-developed foam material that supports the colonization of beneficial bacteria, providing mechanical and biological filtration. The bio-filtration process breaks down toxic ammonia and nitrites, preserving a clean, healthy habitat for your fish. CAF sponge filters are weighted and easy to install with an air pump or powerhead (sold separately), which provides airlift for silent operation. CAF filters may be used as stand-alone, breeding, or secondary filters, and will fit most external or top filters to act as pre-filtration units.

Directions: When performing routine maintenance, save a portion of removed aquarium water in a fish-safe container. Disassemble the sponge filter and separate the sponge from the hardware. Use the saved aquarium water to clean the sponge. Squeeze it, shake it, and rinse it out in the fish-safe container. When the sponge looks clean, reassemble the sponge filter and reinstall.

Specifications:
CAF-10:

• Aquariums up to 10 gallons
• 60 pores/linear inch
• Diameter: 2" (base); 2" (sponge)
• Uplift tube height: 1.5"
• Sponge height: 1.75"
• Full height: 3.5"
• Uplift I/D: 9/16"

CAF-25:

• Aquariums up to 25 gallons
• 40 pores/linear inch
• Diameter: 2.75" (base); 3.125" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-40:

• Aquariums up to 40 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-60:

• Aquariums up to 60 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 5.5"
• Full height: 8.5"
• Uplift I/D: 3/4"

CAF-180:

• Aquariums up to 180 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 6.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

CAF-250:

• Aquariums up to 250 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 8.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

Aquatop CAF Classic Aqua Flow Sponge Filters make maintenance of your home aquarium more convenient than ever. Sponge filters have been hobbyist, breeder, and hatchery favorites for decades, providing simple, efficient biological and mechanical filtration with less maintenance than traditional filters.

• A simple, classic, economical aquarium filter
• Tested by breeders and hatcheries for decades
• Less maintenance than traditional filters
• Fast and easy cleaning

Aquatop Classic Sponge Filters feature specially-developed foam material that supports the colonization of beneficial bacteria, providing mechanical and biological filtration. The bio-filtration process breaks down toxic ammonia and nitrites, preserving a clean, healthy habitat for your fish. CAF sponge filters are weighted and easy to install with an air pump or powerhead (sold separately), which provides airlift for silent operation. CAF filters may be used as stand-alone, breeding, or secondary filters, and will fit most external or top filters to act as pre-filtration units.

Directions: When performing routine maintenance, save a portion of removed aquarium water in a fish-safe container. Disassemble the sponge filter and separate the sponge from the hardware. Use the saved aquarium water to clean the sponge. Squeeze it, shake it, and rinse it out in the fish-safe container. When the sponge looks clean, reassemble the sponge filter and reinstall.

Specifications:
CAF-10:

• Aquariums up to 10 gallons
• 60 pores/linear inch
• Diameter: 2" (base); 2" (sponge)
• Uplift tube height: 1.5"
• Sponge height: 1.75"
• Full height: 3.5"
• Uplift I/D: 9/16"

CAF-25:

• Aquariums up to 25 gallons
• 40 pores/linear inch
• Diameter: 2.75" (base); 3.125" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-40:

• Aquariums up to 40 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-60:

• Aquariums up to 60 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 5.5"
• Full height: 8.5"
• Uplift I/D: 3/4"

CAF-180:

• Aquariums up to 180 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 6.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

CAF-250:

• Aquariums up to 250 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 8.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

Aquatop CAF Classic Aqua Flow Sponge Filters make maintenance of your home aquarium more convenient than ever. Sponge filters have been hobbyist, breeder, and hatchery favorites for decades, providing simple, efficient biological and mechanical filtration with less maintenance than traditional filters.

• A simple, classic, economical aquarium filter
• Tested by breeders and hatcheries for decades
• Less maintenance than traditional filters
• Fast and easy cleaning

Aquatop Classic Sponge Filters feature specially-developed foam material that supports the colonization of beneficial bacteria, providing mechanical and biological filtration. The bio-filtration process breaks down toxic ammonia and nitrites, preserving a clean, healthy habitat for your fish. CAF sponge filters are weighted and easy to install with an air pump or powerhead (sold separately), which provides airlift for silent operation. CAF filters may be used as stand-alone, breeding, or secondary filters, and will fit most external or top filters to act as pre-filtration units.

Directions: When performing routine maintenance, save a portion of removed aquarium water in a fish-safe container. Disassemble the sponge filter and separate the sponge from the hardware. Use the saved aquarium water to clean the sponge. Squeeze it, shake it, and rinse it out in the fish-safe container. When the sponge looks clean, reassemble the sponge filter and reinstall.

Specifications:
CAF-10:

• Aquariums up to 10 gallons
• 60 pores/linear inch
• Diameter: 2" (base); 2" (sponge)
• Uplift tube height: 1.5"
• Sponge height: 1.75"
• Full height: 3.5"
• Uplift I/D: 9/16"

CAF-25:

• Aquariums up to 25 gallons
• 40 pores/linear inch
• Diameter: 2.75" (base); 3.125" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-40:

• Aquariums up to 40 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-60:

• Aquariums up to 60 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 5.5"
• Full height: 8.5"
• Uplift I/D: 3/4"

CAF-180:

• Aquariums up to 180 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 6.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

CAF-250:

• Aquariums up to 250 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 8.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

Aquatop CAF Classic Aqua Flow Sponge Filters make maintenance of your home aquarium more convenient than ever. Sponge filters have been hobbyist, breeder, and hatchery favorites for decades, providing simple, efficient biological and mechanical filtration with less maintenance than traditional filters.

• A simple, classic, economical aquarium filter
• Tested by breeders and hatcheries for decades
• Less maintenance than traditional filters
• Fast and easy cleaning

Aquatop Classic Sponge Filters feature specially-developed foam material that supports the colonization of beneficial bacteria, providing mechanical and biological filtration. The bio-filtration process breaks down toxic ammonia and nitrites, preserving a clean, healthy habitat for your fish. CAF sponge filters are weighted and easy to install with an air pump or powerhead (sold separately), which provides airlift for silent operation. CAF filters may be used as stand-alone, breeding, or secondary filters, and will fit most external or top filters to act as pre-filtration units.

Directions: When performing routine maintenance, save a portion of removed aquarium water in a fish-safe container. Disassemble the sponge filter and separate the sponge from the hardware. Use the saved aquarium water to clean the sponge. Squeeze it, shake it, and rinse it out in the fish-safe container. When the sponge looks clean, reassemble the sponge filter and reinstall.

Specifications:
CAF-10:

• Aquariums up to 10 gallons
• 60 pores/linear inch
• Diameter: 2" (base); 2" (sponge)
• Uplift tube height: 1.5"
• Sponge height: 1.75"
• Full height: 3.5"
• Uplift I/D: 9/16"

CAF-25:

• Aquariums up to 25 gallons
• 40 pores/linear inch
• Diameter: 2.75" (base); 3.125" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-40:

• Aquariums up to 40 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 3.5"
• Full height: 6.75"
• Uplift I/D: 3/4"

CAF-60:

• Aquariums up to 60 gallons
• 40 pores/linear inch
• Diameter: 3.25" (base); 5" (sponge)
• Uplift tube height: 3"
• Sponge height: 5.5"
• Full height: 8.5"
• Uplift I/D: 3/4"

CAF-180:

• Aquariums up to 180 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 6.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone

CAF-250:

• Aquariums up to 250 gallons
• 35 pores/linear inch
• Diameter: 3.5" (base); 8.5" (sponge)
• Uplift tube height: 6"
• Sponge height: 7.75"
• Full height: 13.75"
• Uplift I/D: 1"
• Includes free air stone