The Aquatop CAF-40 Classic Sponge Filter keeps aquariums up to 40 gallons clear with its weighted design and 40 PPI sponge. It offers reliable mechanical and biological filtration, capturing debris and cultivating beneficial bacteria to maintain balanced, healthy water.

Why You’ll Love It:

• For aquariums up to 40 gallons

• Weighted base prevents movement

• 40 PPI sponge provides efficient filtration

• Mechanical + biological action

• Gentle flow safe for small fish and shrimp