top of page
Aquatop Internal Sponge Filter - 25 gallons

Aquatop Internal Sponge Filter - 25 gallons

SKU: T975

The Aquatop CAF-25 Internal Sponge Filter, designed for aquariums up to 25 gallons, offers a straightforward and cost-effective filtration solution suitable for both novice and experienced aquarists. Its specially crafted foam material supports the growth of beneficial bacteria, facilitating mechanical and biological filtration processes that effectively break down harmful ammonia and nitrite, promoting a healthier aquatic environment for your fish. Utilizing an airlift system, the CAF-25 ensures superior filtration performance with quiet operation, and its weighted design provides stability. While commonly used as a standalone filter, it's also compatible with external or top filters, making it versatile for various setups including breeding tanks or as a secondary filter. With easy installation and minimal maintenance requirements, this sponge filter is an economical and durable choice for aquarium filtration.

AQUATOP CAF-25 Internal Sponge Filter


Sponge filters have been around for decades and there’s a reason these filters are so popular. Sponge filters do an excellent job of clearing impurities from aquarium water and are amazingly simple and inexpensive to operate. The Aquatop CAF-25 can be used in systems up to 25 gallons and is simple to install. Use it as a stand-alone filter or for breeders and hatcheries; you won't be disappointed with its performance. 

Like all the CAF Classic Sponge Filters, the CAF-25 runs silently and offers excellent filtering while oxygenating the water. The specially developed foam materials support the colonization of beneficial bacteria, allowing for mechanical and biological filtration, which will break down harmful ammonia and nitrite material resulting in a cleaner living environment for your fish. 


•  For freshwater and saltwater aquariums
•  Install with either an air pump or a powerhead
•  Provides reliable filtration in fry aquariums and quarantine systems
•  Add extra biological filtration in heavily stocked aquariums
•  Models designed for virtually any size system 

bottom of page