Dr Tim's Aquatics One and Only Marine - 60ml / 2oz

You can typically add fish after 24-48 hours once you confirm that ammonia and nitrite levels are at zero. Monitor your water parameters closely.

No, One and Only Marine cannot be overdosed. It is safe to add more than the recommended dosage if desired.

Store in a cool place. Refrigeration is recommended for optimal shelf life, up to one year. At room temperature, it remains effective for six months.

Yes, this product is specifically designed for reef and nano aquaria and is safe for corals and sensitive fish.

New tank syndrome refers to the initial period in a new aquarium when toxic ammonia and nitrite accumulate because a biological filter has not yet been established. This product helps prevent that by instantly creating a biofilter.

While not strictly necessary after every small water change, it is beneficial to use after larger water changes, after disease treatments, or when adding new, sensitive livestock to ensure the biofilter is robust.

The active ingredient is 100% living nitrifying bacteria.

Ensure the product was shaken well before use and the entire contents were added. Verify water parameters are stable and within the typical range for marine aquariums (e.g., salinity, temperature). Consider if any other chemicals were recently added to the tank.

Cloudy water is often a sign of bacterial bloom, which is normal when introducing live bacteria. It should clear on its own within a few days. Avoid performing large water changes during this period unless absolutely necessary.

Ensure the product has been stored properly. Refrigeration is recommended for maximum longevity. If the product has been left unrefrigerated for an extended period, its effectiveness may be reduced.