Seachem Marine Conditioners

A range of Marine conditioners and supplements for marine and saltwater aquariums from Seachem available here at Charterhouse Aquatics

A range of Marine conditioners and supplements for marine and saltwater aquariums from Seachem available here at Charterhouse Aquatics

 Have questions about Seachem Marine Conditioners? Checkout out our FAQ!

Have Questions About Seachem Marine Conditioners?
We Have Answers.

Get quick answers to common questions about Seachem Marine Conditioners

What is Seachem and why is it trusted by aquarists?

Seachem is a globally recognised brand that has been providing scientifically formulated aquatic care products since 1980. From water conditioners and filtration media to reef supplements and plant fertilizers, Seachem’s product line covers nearly every aspect of freshwater and marine aquarium care. The brand is known for its lab-tested quality, consistency, and effectiveness, making it a top choice among both beginner and advanced hobbyists.

How do I use Seachem Prime correctly?

To use Seachem Prime, dose 5 mL per 200 litres of new or treated tap water. It should be used during water changes or anytime ammonia, nitrite, or heavy metals may be present. In emergency situations, up to five times the recommended amount may be safely used to detoxify harmful compounds and protect aquatic life.

Can I use Seachem Stability with an established tank?

Yes, Seachem Stability is not limited to new tank setups. It is extremely useful in established tanks for reinforcing the biofilter after events like filter maintenance, medication use, or water parameter changes. Regular use helps maintain microbial diversity and ensures stable biological filtration.

Are Seachem products reef-safe?

Seachem offers a specific marine product line that is reef-safe and compatible with sensitive corals and invertebrates. Products such as Reef Fusion, Reef Builder, Reef Calcium, and PhosGuard contain no harmful substances and are free from phosphate, nitrate, or unbound metals. When dosed according to instructions, they support reef systems safely.

Can I use multiple Seachem products at once?

Yes, Seachem products are formulated to work in harmony. However, it’s important to follow dosing guidelines and avoid combining them with incompatible products. For example, Prime should not be used simultaneously with oxidising medications. Refer to Seachem’s compatibility resources or contact their support team for custom advice.

Where are Seachem products made?

All Seachem products are manufactured in the United States. The company is privately owned and independently operated, with a strong reputation for in-house research, quality control, and consistent product formulation.

What are the most popular Seachem products?

Seachem’s most recognized products include Prime, a water conditioner that removes chlorine, chloramine, and detoxifies ammonia; Stability, which introduces and supports beneficial bacteria for biofiltration; Purigen, a synthetic resin that removes organic waste and enhances water clarity; Reef Fusion 1 and 2, a balanced two-part calcium and alkalinity system for reef tanks; Matrix, a premium biological filter media; and Flourish, a staple nutrient supplement for freshwater planted aquariums.

Trusted by Aquarists Worldwide – Shop the Full Seachem Range

Explore the complete Seachem collection at Charterhouse Aquatics, featuring trusted water treatments, filtration media, reef supplements, and nutrient control solutions. Whether you’re running a freshwater planted tank, a high-performance marine system, or a thriving reef aquarium, Seachem offers scientifically backed, lab-tested products to help maintain ideal water chemistry and biological balance.

From industry favorites like Prime, Stability, Purigen, and Reef Fusion, to advanced aquascaping and trace element additives, Seachem delivers effective, reliable, and affordable solutions for every stage of aquarium care. Backed by decades of innovation and a reputation for quality, Seachem is a go-to brand for beginner and expert aquarists alike.

Shop Seachem at Charterhouse Aquatics for fast UK delivery, expert support, and a comprehensive selection of trusted aquatic care essentials.