Seachem Prime Aquarium Water Conditioner 100ml

Seachem Prime 100ml is a highly concentrated aquarium water conditioner designed to make tap water safe for freshwater and marine aquariums.

Prime removes chlorine and chloramine while temporarily detoxifying ammonia, nitrite and nitrate, helping protect fish during water changes, new aquarium setup and temporary water-quality problems.

With a standard dose of just 5ml per 200 litres, one 100ml bottle can treat up to 4,000 litres of aquarium water.

Key Features and Benefits

• Highly concentrated aquarium water conditioner
• Removes chlorine from tap water
• Removes chloramine
• Temporarily detoxifies ammonia
• Temporarily detoxifies nitrite and nitrate
• Suitable for freshwater and marine aquariums
• Helps make tap water safe during water changes
• Can be used when setting up a new aquarium
• Useful during aquarium cycling
• Does not significantly alter aquarium pH
• 100ml bottle treats up to 4,000 litres at the standard dose
• Easy and economical to use

Why Use Seachem Prime?

Tap water supplied to Australian homes may contain chlorine or chloramine to make drinking water safe.

While these compounds are useful for municipal water treatment, they can be harmful to aquarium fish and the beneficial bacteria living within your filter.

Seachem Prime conditions replacement tap water before or during a water change by removing chlorine and chloramine.

Prime can also temporarily bind toxic forms of ammonia, nitrite and nitrate, providing additional protection while the aquarium's biological filtration processes them.

Ideal for Aquarium Water Changes

Prime can be used whenever tap water is added to an aquarium.

It is ideal for:

• Routine partial water changes
• New aquarium setup
• Aquarium cycling
• Replacing evaporated or removed water
• Temporary ammonia or nitrite situations
• Freshwater aquariums
• Marine aquariums

Prime can be added directly to the new water before it enters the aquarium or dosed into the aquarium itself.

How Much Seachem Prime Do I Use?

Use:

5ml of Seachem Prime for every 200 litres of new water.

For smaller amounts of water:

1ml treats approximately 40 litres.

At the normal dose, the 100ml bottle can treat approximately:

4,000 litres of water.

If Prime is added directly to the aquarium rather than the replacement water, dose according to the total aquarium volume.

Seachem Prime & Chloramine

Chloramine is a combination of chlorine and ammonia that is commonly used in municipal water supplies.

Prime breaks the chloramine bond, removes the chlorine component and temporarily detoxifies the resulting ammonia.

The ammonia remains available to the aquarium's beneficial bacteria, allowing the biological filter to continue processing it.

Seachem Prime & Ammonia

Prime does not permanently remove ammonia from the aquarium.

Instead, it temporarily converts or binds ammonia into a less toxic form, giving the biological filtration system time to process it.

This can make Prime particularly useful:

• During aquarium cycling
• After an unexpected ammonia reading
• Following increased aquarium bioload
• During temporary water-quality problems

Prime should not replace proper filtration, water testing or regular aquarium maintenance.

Seachem Prime During Aquarium Cycling

Prime can be used during the aquarium cycling process.

Because detoxified ammonia remains available to beneficial bacteria, Prime does not prevent the biological filter from establishing.

For new aquarium setups, Prime is often used alongside a beneficial bacteria product such as Seachem Stability.

Concentrated & Economical

Prime is highly concentrated compared with many standard aquarium water conditioners.

Only a small amount is required for each water change.

For example:

This makes the 100ml bottle particularly economical for small to medium freshwater aquariums.

Does Seachem Prime Affect pH?

Prime is non-acidic and is designed not to significantly affect aquarium pH when used as directed.

This makes it suitable for a wide variety of freshwater aquarium setups including:

• Community aquariums
• Planted aquariums
• Aquascapes
• Cichlid tanks
• Betta tanks
• Shrimp aquariums

Always maintain water parameters appropriate for the livestock being kept.

Important Information

A mild sulphur-like smell from Seachem Prime is normal and does not indicate that the product has spoiled.

Always follow the dosage directions on the bottle.

Do not repeatedly use elevated doses unless required and appropriate for the aquarium conditions.

Product Specifications

Frequently Asked Questions

What does Seachem Prime do?

Seachem Prime removes chlorine and chloramine from tap water and temporarily detoxifies ammonia, nitrite and nitrate.

How much Seachem Prime do I use?

The standard dose is 5ml for every 200 litres of water, or approximately 1ml per 40 litres.

How much water will Seachem Prime 100ml treat?

At the standard dose, a 100ml bottle will treat approximately 4,000 litres of water.

Does Seachem Prime remove ammonia?

Prime temporarily detoxifies ammonia rather than permanently removing it. The ammonia remains available for the aquarium's biological filtration to process.

Can Seachem Prime be used during aquarium cycling?

Yes. Prime can be used during cycling to temporarily detoxify ammonia and nitrite while still allowing beneficial bacteria to process those compounds.

Can I add Seachem Prime directly to my aquarium?

Yes. Prime can be added directly to the aquarium, although Seachem recommends adding it to replacement water first where practical. If dosing directly into the aquarium, calculate the dose based on the aquarium's total volume.

Is Seachem Prime suitable for freshwater aquariums?

Yes. Prime is suitable for freshwater and marine aquariums.

Does Seachem Prime affect aquarium pH?

Prime is non-acidic and should not significantly alter aquarium pH when used as directed.

Why does Seachem Prime smell like sulphur?

A sulphur-like smell is normal for Seachem Prime and does not indicate that the product is faulty.

Can I use Seachem Prime with Seachem Stability?

Yes. Prime and Stability are commonly used together when setting up or cycling a new aquarium.