Biozym 303 High Activating Probiotics is an advanced, high-performance bacterial formula designed to rapidly establish a strong biological filtration system in both freshwater and marine aquariums. Infused with the V2 stress-resistant strain developed by Biozym Laboratories, this powerful probiotic solution works fast to convert tap water into fish-safe, stable, and healthy aquarium water.
Perfect for new setups, water changes, and ongoing maintenance, Biozym 303 ensures crystal-clear water, stable parameters, and long-term biological balance.
Instantly conditions tap water into safe, fish-ready water
Rapidly establishes nitrification bacteria, ideal for new tanks or after water changes
Breaks down ammonia and nitrite, preventing toxic spikes
Keeps water clear, stable, and free of harmful bacteria
Helps prevent common fish diseases caused by poor water quality
Contains trace elements that promote fast bacterial growth
Works in both freshwater and marine aquariums
Strains naturally adhere to filter media for long-term stability
1 bottle treats up to 1000 liters
Use 1 bottle per 100 liters of water for maximum activation
Re-dose after every water change or every 7–10 days to replenish bacteria
Probiotics will self-attach to filter media, supporting a stable long-term biofilter
Break the tip along the white solid line at the bottle neck.
For safety, wrap the bottle mouth with a cloth or use a bottle opener before snapping to avoid injury.
Biozym 303 High Activating Probiotics is ideal for aquarists who want simple, immediate, and effective water conditioning. With its ultra-fast bacterial colonization and stress-resistant strains, it ensures your fish stay healthy, your water stays stable, and your aquarium biology thrives.
