Description
xSeachem Prime: versatile water conditioning for freshwater and saltwater tanks
Seachem Prime is a complete, concentrated conditioner designed for both freshwater and saltwater aquariums. Built on decades of science and hobbyist insight, Prime helps you prepare and protect your tank water, supporting a calm, clear environment for your fish and invertebrates.
What it does for your tank
- Instant chlorine and chloramine removal so tap water is gentler on your biofilter and aquatic inhabitants.
- Detoxifies ammonia and nitrite for up to 48 hours, while the biofilter processes these compounds more gradually.
- Detoxifies heavy metals commonly found in tap water, helping to keep the new water composition friendlier to fish.
These benefits work together to create a more predictable starting point during water changes, new tank setups, or routine maintenance, without making guarantees about outcomes. The language stays practical and focused on what you can observe in your aquarium.
How to use Seachem Prime (easy dosing)
Prime is designed for simple, reliable dosing with clear guidance:
- For new or replacement water, add Prime first to the water you’re preparing.
- Standard dosing: 1 capful (10 mL) per 400 L (100 US gallons).
- For exceptionally high chloramine concentrations, a double dose is safe to use.
- For smaller volumes, use 2 drops per gallon.
Safety and special cases: In an emergency, a 5x dose can be used for ammonia and nitrite. If the water temperature is above 30°C (86°F) and chlorine or ammonia levels are low, consider a half dose. These guidelines help you tailor dosing to your water conditions.
Why Seachem Prime matters to hobbyists
Seachem is rooted in scientific rigor and hobbyist passion. The company emphasizes education and dependable performance, maintaining an independent, hobbyist-owned culture. Prime reflects this approach by offering a practical, science-informed tool you can trust for both fresh and marine setups.
Real-world uses and expectations
Think of Prime as a first step in safer water during changes or new tank starts. It pairs with your filtration to support the biofilter and reduce immediate stress signals for fish like bettas or tetras, while giving you a more stable starting point for daily care and routine maintenance.
FAQ
Q: What is Seachem Prime used for?
A: Seachem Prime removes chlorine and chloramine and detoxifies ammonia and nitrite for up to 48 hours, helping calm fish during water changes.
Q: How do you dose Seachem Prime?
A: Dose 1 capful (10 mL) per 400 L (100 gallons) of new or replacement water; double for high chloramine; 2 drops per gallon for smaller volumes.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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