OCEAN FREE SMART FILTER 400LPH BIO FOAM

Ocean Free Smart Filter 400 LPH Bio Foam — Specifications

Ocean Free Smart 400 Internal Filter (400 LPH) is a compact internal aquarium filter that uses bio foam-based multi-stage filtration for mechanical and biological cleaning.

Product Specifications

• Brand: Ocean Free (OF)
• Model: Smart 400 Internal Filter
• Flow rate: 400 LPH (liters per hour)
• Power consumption: ~6W
• Filter type: Internal submersible filter
• Recommended tank size: up to ~50–80 liters (depends on fish load)

Filtration system

• Mechanical filtration: bio foam sponge traps debris and waste
• Biological filtration: foam provides surface for beneficial bacteria
• Chemical filtration: optional cartridge section (carbon/zeolite in some versions)
• Works as a multi-stage compact filter system

Key features

• Built-in bio foam for bacterial growth
• Improves water clarity and stability
• Adjustable flow direction and rate
• Quiet and energy efficient operation
• Suitable for freshwater aquariums

Bio foam function (important)

• Traps solid waste (fish poop, leftover food)
• Hosts beneficial nitrifying bacteria
• Helps maintain nitrogen cycle:
  • Ammonia → Nitrite → Nitrate
• Essential for stable aquarium environment

Maintenance tips

• Clean foam using old tank water only (not tap water)
• Wash every 1–2 weeks depending on load
• Replace foam only when it starts breaking down
• Avoid over-cleaning to preserve bacteria colony

Best for

• Small community aquariums
• Guppies, tetras, barbs
• Goldfish (light stocking)
• Beginner fish tanks