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Seachem Supplements

(27 items)

Seachem has been a business founded on good science for more than 40 years. Your purchase of Seachem products includes their expertise in the hobby and a qualified team of chemists and biologists. The company's guiding principle is that informed hobbyists create the best customers. This is exemplified by Seachem's commitment to providing customers with dependable education and assistance as well as goods that have been scientifically and operationally tested. Even though Seachem has expanded quickly to become a national and worldwide corporation, it nevertheless maintains a small-business atmosphere and is easily accessible to its clients.

Dive Deeper: Info & Tips for Seachem Supplements

Seachem Supplements are trusted worldwide by freshwater and marine aquarists for maintaining clean, stable, and healthy aquarium environments. Known for their scientifically developed water conditioners, clarifiers, and coral care treatments, Seachem provides solutions that help hobbyists manage toxins, improve water clarity, and safeguard coral health. Whether you’re preparing new water, managing an established tank, or introducing new livestock or corals, Seachem products offer easy-to-use, effective options backed by decades of expertise.


Explore the Seachem Supplement Line

Seachem’s core water conditioners form the foundation of safe, stable aquarium care.

  • Prime: A highly concentrated water conditioner that removes chlorine, chloramine, and detoxifies ammonia, nitrite, and nitrate, making tap water safe for freshwater and saltwater tanks.
  • Clarity: A water clarifier that works rapidly to clear cloudy or hazy water, improving visual clarity in both freshwater and marine systems.

For coral health and pest management, Seachem offers:

  • Reef Dip: A complexed iodine-based dip that provides broad-spectrum protection against external coral parasites, bacteria, and fungal infections during acclimation or quarantine.

These products are designed to integrate seamlessly into regular aquarium maintenance routines, supporting long-term livestock health and system stability.


Optimization Tips

To get the most out of Seachem supplements, follow a few key best practices.

  • Always dose Prime based on total tank volume, especially during water changes or after ammonia spikes.
  • Use Clarity only as directed — overdosing can overwhelm filtration and temporarily stress livestock.
  • When using Reef Dip, follow dilution and timing instructions carefully to protect coral tissue while effectively removing pests.
  • Pair conditioners and dips with routine testing and maintenance; they’re tools to enhance stability, not substitutes for regular care.

Expert Tips

Seachem products are known for their potency, so precision matters. For Prime, it’s better to dose slightly under rather than over, especially in tanks with sensitive species like shrimp or corals. Clarity works best when paired with mechanical filtration, as it binds particles into clumps for easier removal. When using Reef Dip, always rinse corals in clean saltwater before adding them to your display tank — this minimizes residual iodine and protects system balance. Finally, remember that supplements work best as part of a consistent care routine; they enhance, but can’t replace, good husbandry.

Frequently Asked Questions

When should I use Seachem Prime in my aquarium?

Seachem Prime is most commonly used when preparing tap water for water changes, as it removes chlorine, chloramine, and detoxifies ammonia, nitrite, and nitrate. It’s also useful during emergencies, such as ammonia or nitrite spikes, to help temporarily reduce toxicity while you address the root cause. Prime is safe for both freshwater and saltwater systems and should always be dosed according to the full tank volume, not just the replacement water.

How does Seachem Clarity work, and when should I use it?

Seachem Clarity is a water clarifier designed to clear cloudy or hazy water by binding fine particles together so they can be removed by mechanical filtration. It’s effective in both freshwater and marine tanks and works quickly to improve visual clarity. Clarity should only be used as directed, since overdosing can temporarily stress livestock or overwhelm filtration systems. For best results, ensure your tank has an active mechanical filter, such as filter floss or a sponge, to capture the clumped particles.

What is Reef Dip, and why should I use it on my corals?

Reef Dip is an iodine-based coral treatment used during the quarantine or acclimation process to remove external parasites, bacteria, and fungal infections from coral frags or colonies. It helps reduce the risk of introducing harmful pests or pathogens into your display tank. To use Reef Dip effectively, follow the dilution and immersion instructions carefully, and always rinse corals in clean saltwater after dipping to minimize any residual treatment.

Can I use Seachem Prime and Clarity together in the same tank?

Yes, Prime and Clarity can be used in the same system when needed, as they serve different purposes. Prime detoxifies harmful substances in the water, while Clarity improves water clarity by binding particles. However, they should be dosed separately and according to instructions. After using Clarity, monitor your system closely, as the sudden clumping of particles may require filter cleaning or water flow adjustments to maintain oxygen levels.

How often should I use Seachem conditioners or dips in my maintenance routine?

Prime is typically used during every water change or whenever you’re introducing new water into the system. Clarity should only be used as needed when water clarity becomes an issue; it’s not meant for regular dosing. Reef Dip is used only during the introduction of new corals, as part of a quarantine or acclimation procedure, and not as an ongoing treatment. Overusing these products can disrupt the balance of your aquarium, so it’s best to apply them only when there’s a specific need.