ISTA Bio Sponge Filter – Large (L)

A high-quality air-driven biological sponge filter designed for freshwater aquariums. Its large sponge provides excellent mechanical filtration while supporting beneficial bacteria that help break down harmful ammonia and nitrite. It also improves oxygen circulation and creates gentle water flow, making it safe for delicate fish.

Features:

• Large biological filtration surface
• Traps dirt and fine waste particles
• Gentle flow that will not suck up baby fish
• Ideal for shrimp, betta, guppy, fry and breeding tanks
• Easy to install, clean and reuse
• Requires a separate air pump and airline tube
• Suitable for freshwater aquariums