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Internal Sponge Aquarium Filters
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AquaTop CAF-10 Internal Sponge Filter Up to 10 Gallons
AquaTop CAF-10 Internal Sponge Filter, Up to 10G
Our Price: $2.99
In Stock

The AquaTop CAF-10 Internal Sponge Filter is a simple, classic and economical sponge filter for aquariums up to 10 gallons. The specially developed foam materials of each CAF sponge filter supports the colonization of bacteria, allowing for mechanical and biological filtration. The process breaks down harmful ammonia and nitrite material resulting in a cleaner living environment for your fish. The CAF-10 is weighted and used an airlift system for superior filtration and silent operation. The CAF sponge filters can be used as stand-alone filters, although many customers find them particularly useful as breeding filters or as a secondary filter. The CAF-10 will fit many external or top filters so it can also be used as pre-filtration unit.

Features:
  • Requires an air pump. Can be connected to a standard airline hose connection.
  • For aquariums up to 10 gallons
  • 2" diameter, 3-1/8" tall (including uplift tube)
  • Excellent for breeders and hatcheries
  • Less maintenance than traditional filters
  • Easy and fast to clean
  • Economical and longer lasting
  • Weighted
AquaTop CAF-25 Internal Sponge Filter Up to 25 Gallons
AquaTop CAF-25 Internal Sponge Filter, Up to 25G
Our Price: $4.99
In Stock

The AquaTop CAF-25 Internal Sponge Filter is a simple, classic and economical sponge filter for aquariums up to 25 gallons. The specially developed foam materials of each CAF sponge filter supports the colonization of bacteria, allowing for mechanical and biological filtration. The process breaks down harmful ammonia and nitrite material resulting in a cleaner living environment for your fish. The CAF-25 is weighted and used an airlift system for superior filtration and silent operation. The CAF sponge filters can be used as stand-alone filters, although many customers find them particularly useful as breeding filters or as a secondary filter. The CAF-25 will fit many external or top filters so it can also be used as pre-filtration unit.

Features:
  • Requires either an air pump or powerhead
  • Can be connected to a standard airline hose connection or to a powerhead with the I/D 3/4" uplift connector. We recommend using the AquaTop Powerheads. If used with a pump be sure to clean the Filter on a regular basis. If the Filter is completely clogged, you'll damage the pump.
  • For aquariums up to 25 gallons
  • 2.75" diameter, 6.75" tall (including uplift tube)
  • Excellent for breeders and hatcheries
  • Less maintenance than traditional filters
  • Easy and fast to clean
  • Economical and longer lasting
  • Weighted
AquaTop CAF-40 Internal Sponge Filter Up to 40 Gallons
AquaTop CAF-40 Internal Sponge Filter, Up to 40G
Our Price: $5.99
In Stock

The AquaTop CAF-40 Internal Sponge Filter is a simple, classic and economical sponge filter for aquariums up to 40 gallons. The specially developed foam materials of each CAF sponge filter supports the colonization of bacteria, allowing for mechanical and biological filtration. The process breaks down harmful ammonia and nitrite material resulting in a cleaner living environment for your fish. The CAF-40 is weighted and used an airlift system for superior filtration and silent operation. The CAF sponge filters can be used as stand-alone filters, although many customers find them particularly useful as breeding filters or as a secondary filter. The CAF-40 will fit many external or top filters so it can also be used as pre-filtration unit.

Features:
  • Requires either an air pump or powerhead
  • Can be connected to a standard airline hose connection or to a powerhead with the I/D 3/4" uplift connector. We recommend using the AquaTop Powerheads. If used with a pump be sure to clean the Filter on a regular basis. If the Filter is completely clogged, you'll damage the pump.
  • For aquariums up to 40 gallons
  • Includes airstone
  • 5" diameter, 6.75" tall (including uplift tube)
  • Excellent for breeders and hatcheries
  • Less maintenance than traditional filters
  • Easy and fast to clean
  • Economical and longer lasting
  • Weighted
AquaTop CAF-60 Internal Sponge Filter Up to 60 Gallons
AquaTop CAF-60 Internal Sponge Filter, Up to 60G
Our Price: $7.99
In Stock

The AquaTop CAF-60 Internal Sponge Filter is a simple, classic and economical sponge filter for aquariums up to 60 gallons. The specially developed foam materials of each CAF sponge filter supports the colonization of bacteria, allowing for mechanical and biological filtration. The process breaks down harmful ammonia and nitrite material resulting in a cleaner living environment for your fish. The CAF-60 is weighted and used an airlift system for superior filtration and silent operation. The CAF sponge filters can be used as stand-alone filters, although many customers find them particularly useful as breeding filters or as a secondary filter. The CAF-60 will fit many external or top filters so it can also be used as pre-filtration unit.

Features:
  • Requires either an air pump or powerhead
  • Can be connected to a standard airline hose connection or to a powerhead with the I/D 3/4" uplift connector. We recommend using the AquaTop Powerheads. If used with a pump be sure to clean the Filter on a regular basis. If the Filter is completely clogged, you'll damage the pump.
  • For aquariums up to 60 gallons
  • Includes airstone
  • 5.5" diameter, 8.5" tall (including uplift tube)
  • Excellent for breeders and hatcheries
  • Less maintenance than traditional filters
  • Easy and fast to clean
  • Economical and longer lasting
  • Weighted
AquaTop CAF-180 Internal Sponge Filter Up to 180 Gallons
AquaTop CAF-180 Internal Sponge Filter, Up to 180G
Our Price: $19.99
In Stock

The AquaTop CAF-180 Internal Sponge Filter is a simple, classic and economical sponge filter for aquariums up to 180 gallons. The specially developed foam materials of each CAF sponge filter supports the colonization of bacteria, allowing for mechanical and biological filtration. The process breaks down harmful ammonia and nitrite material resulting in a cleaner living environment for your fish. The CAF-180 is weighted and used an airlift system for superior filtration and silent operation. The CAF sponge filters can be used as stand-alone filters, although many customers find them particularly useful as breeding filters or as a secondary filter. The CAF-180 will fit many external or top filters so it can also be used as pre-filtration unit.

Features:
  • Requires either an air pump or powerhead
  • Can be connected to a standard airline hose connection or to a powerhead with the I/D 1" uplift connector. We recommend using the AquaTop Powerheads. If used with a pump be sure to clean the Filter on a regular basis. If the Filter is completely clogged, you'll damage the pump.
  • For aquariums up to 180 gallons
  • Includes airstone
  • 3.5" diameter, 7.75" tall (including uplift tube)
  • Excellent for breeders and hatcheries
  • Less maintenance than traditional filters
  • Easy and fast to clean
  • Economical and longer lasting
  • Weighted
AquaTop CAF-250 Internal Sponge Filter Up to 250 Gallons
AquaTop CAF-250 Internal Sponge Filter, Up to 250G
Our Price: $26.99
In Stock

The AquaTop CAF-250 Internal Sponge Filter is a simple, classic and economical sponge filter for aquariums up to 250 gallons. The specially developed foam materials of each CAF sponge filter supports the colonization of bacteria, allowing for mechanical and biological filtration. The process breaks down harmful ammonia and nitrite material resulting in a cleaner living environment for your fish. The CAF-250 is weighted and used an airlift system for superior filtration and silent operation. The CAF sponge filters can be used as stand-alone filters, although many customers find them particularly useful as breeding filters or as a secondary filter. The CAF-250 will fit many external or top filters so it can also be used as pre-filtration unit.

Features:
  • Requires either an air pump or powerhead
  • Can be connected to a standard airline hose connection or to a powerhead with the I/D 1" uplift connector. We recommend using the AquaTop Powerheads. If used with a pump be sure to clean the Filter on a regular basis. If the Filter is completely clogged, you'll damage the pump.
  • For aquariums up to 250 gallons
  • Includes airstone
  • 7.75" diameter, 13.75" tall (including uplift tube)
  • Excellent for breeders and hatcheries
  • Less maintenance than traditional filters
  • Easy and fast to clean
  • Economical and longer lasting
  • Weighted