--- product_id: 5519941 title: "Seachem Prime - 250 ml/ 1.7 fl. oz." brand: "seachem" price: "240 kr" currency: NOK in_stock: true category: "Seachem" url: https://www.desertcart.no/products/5519941-seachem-prime-250-ml-1-7-fl-oz store_origin: NO region: Norway --- # Effective for both freshwater & saltwater tanks Concentrated formula treats 50 gallons per 5 mL Detoxifies ammonia & nitrite for 48 hours Seachem Prime - 250 ml/ 1.7 fl. oz. **Brand:** seachem **Price:** 240 kr **Availability:** ✅ In Stock ## Summary > 💧 Transform your tank water into a safe haven—because your fish deserve the best! ## Quick Answers - **What is this?** Seachem Prime - 250 ml/ 1.7 fl. oz. by seachem - **How much does it cost?** 240 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/5519941-seachem-prime-250-ml-1-7-fl-oz) ## Best For - seachem enthusiasts ## Why This Product - Trusted seachem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **48-Hour Detox Shield:** Neutralizes ammonia and nitrite, protecting your aquatic ecosystem during critical cycles. - • **Safe & Easy Application:** Simple dosing with emergency 5x dose option ensures peace of mind for every water change. - • **Dual Water Compatibility:** Perfectly formulated for both freshwater and saltwater environments—one solution for all tanks. - • **Ultra-Concentrated Power:** Just 5 mL conditions 50 gallons—maximize efficiency and save money. - • **Trusted by Hobbyists for 30+ Years:** Backed by decades of scientific expertise and passionate aquarium professionals. ## Overview Seachem Prime is a scientifically formulated, ultra-concentrated water conditioner that instantly removes chlorine and chloramine while detoxifying ammonia and nitrite for up to 48 hours. Suitable for both freshwater and saltwater aquariums, it ensures a safe, healthy environment for fish with minimal dosing. Trusted by aquarists worldwide for over 30 years, Prime combines proven performance with economical use, making it an essential staple for every serious fish keeper. ## Description Seachem Prime is a complete and concentrated conditioner for both freshwater and saltwater fish tanks, working hard to remove chlorine and chloramine.For over three decades, Seachem has been a company rooted in sound science. Our experience in the hobby and an educated staff of chemists and biologists are part of the package when you purchase Seachem products. Seachem remains as one of the few surviving independent and privately owned pet care companies. Seachem is owned and operated by hobbyists. All of our employees are hobbyists who maintain aquariums at home and at the office. Seachem itself was started because one such passionate hobbyist - Dr. Leo G. Morin (Founder) - recognized that the available solutions to aquarists problem wanting. This resulted in Seachem’s very first product: Cupraplex (today known as Cupramine). Over thirty years later Seachem is still approaching old problems in a new way. Seachem’s philosophy is that the knowledgeable hobbyist makes the best customer. This is reflected in solid and reliable customer education and support as well as products proven in science and performance. While Seachem has grown rapidly into a national and international firm, it retains the culture of a small company and is readily available to its customers. ## Features - POWERFUL TREATMENT: Seachem Prime is a complete and concentrated conditioner for both freshwater and saltwater fish tanks, working hard to remove chlorine and chloramine. - REMOVER: Seachem Prime immediately and permanently removes chlorine and chloramine, successfully allowing the bio filter to remove ammonia, nitrite, and nitrate while they are detoxified for 48 hours. - DETOXIFIER: Seachem Prime effectively detoxifies ammonia, nitrite, and heavy metals found in the tap water at typical concentration levels, providing a ideal environment for your betta, tetra, or other fish. - USE: Use 1 capful (5 mL) of Seachem Prime for each 200 L (50 US gallons) of new or replacement water. For best results, add Seachem Prime to new water first. For exceptionally high chloramine concentrations, a double dose may be used safely. For smaller volumes, use 2 drops per gallon. - SAFETY: In case of an emergency, the 5x dose of Seachem Prime may be used for both ammonia and nitrite. Use a ½ dose if the water temperature is > 30°C (86°F) and chlorine or ammonia levels are low. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002568S6 | | ASIN | B0002568S6 | | Allergen Information | Gluten Free | | Best Sellers Rank | #548 in Pet Supplies ( See Top 100 in Pet Supplies ) #1 in Aquarium Water Treatments | | Brand Name | Seachem | | Customer Reviews | 4.8 4.8 out of 5 stars (46,410) | | Date First Available | October 2, 2001 | | Department | Unisex-Adult | | Global Trade Identification Number | 00000116043601 | | Included Components | Seachem Prime 250ml | | Item Form | Liquid | | Item Type Name | Seachem Prime 250Ml | | Item Weight | 10.2 ounces | | Item model number | 67104360 | | Liquid Volume | 250 ml | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer Part Number | 075223 | | Manufacturer recommended age | 1 month and up | | Model Number | 67104360 | | Number of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Product Dimensions | 6.1 x 1.8 x 1.8 inches; 10.2 ounces | | Target Species | Fish | | UPC | 634252024745 000116043601 707005178771 | | Unit Count | 1 Count | ## Product Details - **Brand:** Seachem - **Item Form:** Liquid - **Item Weight:** 10.2 ounces - **Liquid Volume:** 250 ml - **Number of Packs:** 1 ## Images ![Seachem Prime - 250 ml/ 1.7 fl. oz. - Image 1](https://m.media-amazon.com/images/I/61aPb4rk8cL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: Instruction reads use 1 capful for every 50 gallons of new water. So a 35% change on 55 gal. tank, takes 1/4 cap? Sounds too good to be true.** A: Per Seachem's instructions, if you are doing a partial water change of 35%, if you are adding water directly from the tap (such as with a water changer such as a Python or Aqueon) you add enough Prime for the volume of the whole tank. On the other hand, if you're removing 35% and then adding the water using a bucket, you can dechlorinate the amount of each bucket. For example, if you're using a 3 gallon bucket, 6 drops Prime per bucket, and then add that to the tank. The Prime works almost immediately, so just add the drops to the bucket, and then it is ready to pour into your tank. **Q: How long does it take to work when setting up a new tank? Thanks!!** A: this removes the chlorine, etc. almost immediately, I add it to the aquarium when doing water changes, ands just pour the water into the tank. remember this just removes the harmful chemicals, your tank will still have to cycle through the nitrogen cycle if you are setting up a new tank. **Q: I end up with alot of foam at the top of my aquariums when I add prime,Have I added too much to my tap water changes,My Tap water is high in iron** A: The small bottle of prime has a flip cap which allows you to add drops. If you have the large bottle of Prime use an eye dropper. When doing a water change, fill a clean, never seen soap or chemicals bucket of fresh water and add Prime to this fresh water, not directly into your tank - 2 drops per gallon. I also do not get foam. I do a 50 - 60 percent water change weekly along with a gravel vac. If you are stll getting foam after a gravel vac and water change I would suggest you give Seachem a call. They have great customer service. When cleaning your tank, give your filter sponge, floss a swish around in used tank water also to remove some of the gunk and put right back in. Do not rinse in untreated fresh water, by doing so you can lose your cycle. **Q: I'm looking to remove chlorine from my pool, will this work?** A: It will work but there may be less expensive options from a pool dealer. It decholorinates any typerson of water. ## Frequently Bought Together - Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 250 ml - Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1) - API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/5519941-seachem-prime-250-ml-1-7-fl-oz](https://www.desertcart.no/products/5519941-seachem-prime-250-ml-1-7-fl-oz) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-11-10*