Keep your aquarium water crystal clear with this high-quality Small Filter Sock, designed to trap fine debris and particles before they reach your filtration system. Ideal for both freshwater and marine tanks, this 9cm diameter filter sock fits most standard holders and is perfect for smaller sump setups.

Key features:

• 🧽 Effective Mechanical Filtration – Captures uneaten food, detritus, and other fine particles to improve water quality.
• 🔄 Reusable & Durable – Made from strong, washable material for repeated use.
• 💧 Improves Water Clarity – Helps reduce waste build-up and keeps your tank cleaner for longer.
• ⚙️ Easy to Install – Fits most standard filter sock holders with a 9cm (3.5") diameter ring.
• 🐟 Safe for All Aquariums – Suitable for freshwater, saltwater, reef, and planted tanks.