Sobo Hang On Filter Spare Filter Pad | Carbon Fiber Aquarium Filter Replacement Pad | Mechanical & Chemical Filtration for Freshwater & Saltwater Tanks (508H - 4 Pcs)

SOBO Hang-On Filter – Carbon Fiber Replacement Pads (508H, 4 Pcs) 🐠💧

Give your aquarium a quick, no-fuss clarity upgrade! These carbon fiber pads combine mechanical + chemical filtration to keep water clean, clear, and odor-free—in both freshwater and saltwater tanks. 🌊✨

Why you’ll love it

🎯 Made for 508H: Precision fit for SOBO 508H hang-on-back filters—no trimming, no slipping

🧩 2-in-1 Filtration:

🧽 Mechanical — traps debris, uneaten food, and fine particulates

🧪 Chemical — carbon layer helps reduce discoloration, odors & impurities

⚡ Smooth Flow: Low-restriction pad design for steady circulation

🐟 Tank-Safe: Suitable for both marine and freshwater setups

🔄 Quick Swap: Slide-in/slide-out pads for mess-free maintenance

How it works 🧠

Top layer: Catches visible gunk and fine suspended particles

Carbon matrix: Adsorbs dissolved organics that cause yellow tint and smells—leaving water sparkling

How to use & care 🧼

🚿 Rinse before first use to remove dust

⏱️ Replace every 3–4 weeks (earlier for heavy bioloads)

🔁 You can gently rinse the pad to extend mechanical life, but chemical capacity fades over time

❌ No soap/bleach—use tank or dechlorinated water for rinsing

💊 Medication tip: Remove carbon pads while dosing meds; reinstall after treatment to clear residues