Tropical Bacto-Active – Live Bacteria Culture for Aquarium Biological Filtration | Establish & Maintain a Healthy Nitrogen Cycle, Professional Formula for Cycling New Fish Tanks

Tropical Bacto-Active – Live Bacteria Culture

Kickstart your aquarium’s nitrogen cycle with Tropical Bacto-Active, a professional-grade live bacteria supplement trusted by aquarists worldwide. This concentrated formula introduces beneficial nitrifying bacteria directly into your aquarium, converting toxic ammonia and nitrite into harmless nitrate — keeping your fish safe and healthy.

Key Benefits

• Contains live cultures of Nitrosomonas and Nitrobacter bacteria
• Rapidly establishes biological filtration in new aquariums
• Restores bacterial colonies after water changes, filter cleaning, or medication use
• Reduces harmful ammonia and nitrite levels
• Suitable for freshwater and marine aquariums
• Professional-grade formula from Tropical, a trusted name in aquarium care since 1977

When to Use

• Setting up a new aquarium — accelerates the cycling process
• After large water changes (30%+)
• After filter maintenance or media replacement
• Following disease treatment with antibiotics or anti-parasitic medication
• When adding new fish to reduce ammonia spikes

Dosage

5ml per 25 litres of aquarium water. Shake well before use. For best results, add directly near the filter intake. Store in a cool, dark place.

Available Sizes

• 30ml – Treats up to 150 litres
• 100ml – Treats up to 500 litres
• 250ml – Treats up to 750 litres

Specifications

• Type: Live bacteria culture
• Suitable for: Freshwater & marine aquariums
• Brand: Tropical – Professional Aquarium