Seachem Prime is the complete and concentrated conditioner for both fresh and saltwater. It is the industry leader for removing chlorine and chloramine, while also detoxifying ammonia, nitrite, and nitrate. By converting toxic ammonia into a safe, non-toxic form that is easily removed by the tank's biofilter, Prime ensures your livestock remains safe during water changes or emergency spikes.
Seachem Prime goes beyond standard water conditioners by offering multi-stage protection for your aquatic environment.
Chlorine & Chloramine Removal: Rapidly neutralizes these harsh chemicals found in municipal tap water.
Ammonia & Nitrite Detoxification: Renders toxic ammonia and nitrite harmless for up to 48 hours, allowing your biological filter to process them.
Heavy Metal Neutralization: Detoxifies any heavy metals found in the tap water at typical concentration levels.
Slime Coat Promotion: Promotes the natural production and restoration of the fish's slime coat, reducing stress and protecting against infection.
Non-Acidic Formula: Does not affect the pH of your aquarium, making it safe for all sensitive species.
How much Prime do I need to use? Standard dosing is 5 ml (one thread-capful) for every 200 L (50 gallons) of new water. For smaller volumes, use approximately 2 drops per gallon.
Can I use Prime in an emergency ammonia spike? Yes! In an emergency, you may use up to a 5x dose to neutralize high levels of ammonia or nitrite.
Does Prime remove the ammonia permanently? No, it detoxifies it for roughly 24 to 48 hours. This gives your beneficial bacteria time to consume the ammonia without it harming your fish in the meantime.
Seachem Stability: The perfect partner for Prime; use it to quickly establish the biological film that will permanently remove the ammonia Prime has detoxified.
Seachem Matrix: A high-porosity bio-media that provides the ideal home for the bacteria supported by Prime and Stability.
Salifert Ammonia Test Kit: Use this high-accuracy kit to monitor your levels and determine when a dose of Prime is necessary.
