Dophin H300 HOB Filter – Ideal for 90–150 L Aquariums 

Meet the Dophin H300 Hang‑On‑Back (HOB) Filter, engineered for tanks between 120 and 200 liters (roughly 36–45 cm long). Featuring a powerful yet efficiently designed filtration system, it circulates around 430 L/h to maintain crystal-clear water in both freshwater and marine environments

✅ Key Features

• 🔄 Reliable 3‑Stage Filtration – Combines mechanical (sponge), chemical (carbon cartridge), and biological media for comprehensive cleaning

• 💧 430 LPH Flow Rate – Robust circulation suitable for medium-to-large tanks; ideal for 36–45 cm long aquariums

• 🔇 Quiet & Energy-Saving – Operates with only ~3.8–4.4 W power, ensuring low noise and economical consumption

• 🌿 Supports Beneficial Bacteria – Includes a dedicated bio-cartridge housing for optimal nitrifying bacteria colonization

• 🔧 Tool-Free Installation & Maintenance – Simple “fill-and-hang” setup, with cartridge replacement recommended every 2 months

• 🌊 Freshwater & Marine Compatible – Versatile filter built for both aquarium types

• 🧩 Compact Design – Features an extendable inlet (18–26 cm height range) to fit various tank sizes

🔖 Why Choose the H300?

• Delivers reliable filtration without the complexity of canister setups

• Wet/dry style enhances biological filtration over time as bacteria colonize

• Suits planted setups, marine tanks, or community fish environments

• Low maintenance and affordable consumables make it a favorite among hobbyists