Aqua Medic Ozone 400

Aqua Medic ozone 400 is an ozone generator for aquariums, mainly used in reef and freshwater systems to improve water quality.

Key specs

• Ozone output: up to 400 mg/h
• Power consumption: ~5 W
• Air flow: ~200–500 L/h
• Aquarium size:
• Freshwater: up to 4000 L
• Marine (saltwater): up to 2500 L
• Power supply: 12V (with transformer 110–240V)

What it does

• Keeps water crystal clear by removing yellow tint
• Boosts protein skimmer efficiency
• Increases redox potential (ORP)
• Reduces bacteria levels → helps prevent fish diseases
• Helps break down toxic nitrite

Important notes

• Usually used with a protein skimmer (not standalone)
• Requires an air pump (often not included)
• Ozone must be controlled carefully (too much can harm fish and corals)
• Medium to large aquariums
• Reef tank owners wanting very clear water + improved filtration

Not ideal for:

• Small tanks (overkill)
• Beginners without ozone/ORP monitoring