--- product_id: 48995771 title: "Seachem Prime 325ml - Aquarium Water Conditioner, Fish Tank Maintenance, Aquarium Setup & Maintenance, 325g" brand: "seachem" price: "¥4513" currency: JPY in_stock: true category: "Seachem" url: https://www.desertcart.jp/products/48995771-seachem-prime-325ml-aquarium-water-conditioner-fish-tank-maintenance-aquarium store_origin: JP region: Japan --- # 325ml concentrated formula removes chlorine & chloramine detoxifies ammonia, nitrite & nitrate Seachem Prime 325ml - Aquarium Water Conditioner, Fish Tank Maintenance, Aquarium Setup & Maintenance, 325g **Brand:** seachem **Price:** ¥4513 **Availability:** ✅ In Stock ## Summary > 💧 Keep your aquarium pristine and your fish thriving — because they deserve the best splash! ## Quick Answers - **What is this?** Seachem Prime 325ml - Aquarium Water Conditioner, Fish Tank Maintenance, Aquarium Setup & Maintenance, 325g by seachem - **How much does it cost?** ¥4513 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/48995771-seachem-prime-325ml-aquarium-water-conditioner-fish-tank-maintenance-aquarium) ## 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 - • **Emergency Ready:** Safe to overdose up to 5x for rapid detoxification in critical situations. - • **Boosts Fish Health:** Promotes natural slime coat regeneration for resilient, vibrant fish. - • **Ultimate Water Detox:** Neutralizes ammonia, nitrite, and nitrate for a safer aquatic environment. - • **Dual Fresh & Saltwater Use:** Versatile formula perfect for all aquarium types. - • **Chlorine & Chloramine Eraser:** Instantly removes harmful chemicals from tap water. ## Overview Seachem Prime 325ml is a premium, concentrated water conditioner designed for both fresh and saltwater aquariums. It effectively removes chlorine, chloramine, and detoxifies ammonia, nitrite, and nitrate, ensuring a safe and healthy environment for aquatic life. Its unique formula also supports the natural slime coat regeneration on fish, enhancing their health and resilience. Trusted by thousands with a 4.7-star rating, it’s the go-to solution for aquarium setup and maintenance. ## Description Product description Seachem Prime 250ml Plus 30% FREE so you get 325ml Seachem Prime is a complete and concentrated conditioner for both fresh and salt water aquariums, to remove ammonia, chlorine and chloramine. It converts ammonia to a safe, non-toxic product that is removed easily by the filter. It is ideal to use during water cycling to regulate ammonia and nitrate levels. Prime detoxifies nitrite and nitrate, allowing the biofilter to more efficiently remove them. It will also detoxify any heavy metals found in the tap water at typical concentration levels.Prime also promotes the production and regeneration of the natural slime coating on certain types of fish, keeping them in the best of health. Directions: Use 1 capful (5 ml) for each 200 litres of new water. This removes approximately 1 mg per litre ammonia, 4 mg per litre of chloramine, or 5 mg per litre of chlorine. For smaller doses, please note each cap thread is approximately 1 ml. May be added to aquarium directly. For exceptionally high chloramine concentrations, a double dose may be used safely. Directions Measure 1 scoop (5ml) for every 200 litres (50 gallons) of water. For small volumes, please note that each cap thread corresponds to approximately 1 ml. It can be added directly to the aquarium, but it is better if added to the water before adding it to the aquarium. With exceptionally high chloramine concentrations, a double dose can be used safely. In case of emergency, up to 5 times the normal dosage can be used to detoxify nitrites. If the temperature is above 30°C (86°F) and chlorine or ammonia is low, use one and a half doses. ## Features - Complete and concentrated conditioner for both fresh and saltwater - Removes chlorine, chloramine - Detoxifies ammonia, nitrite, and nitrate ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000R2WSLU | | Best Sellers Rank | 21,166 in Pet Supplies ( See Top 100 in Pet Supplies ) 30 in Aquariums & Fish Bowls | | Brand Name | Seachem | | Customer Reviews | 4.7 4.7 out of 5 stars (819) | | Global Trade Identification Number | 00000116043007 | | Item Form | Liquid | | Item Weight | 325 Grams | | Liquid Volume | 325 Millilitres | | Manufacturer | Seachem | | Manufacturer Part Number | 67104300 | | Model Number | SC100018 | | Pet Type | Fish | | Target Species | Fish | | UPC | 000116043007 | | Unit Count | 1 Stück | ## Product Details - **Brand:** Seachem - **Item form:** Liquid - **Item weight:** 325 Grams - **Liquid volume:** 325 Millilitres - **Unit count:** 1 Stück ## Images ![Seachem Prime 325ml - Aquarium Water Conditioner, Fish Tank Maintenance, Aquarium Setup & Maintenance, 325g - Image 1](https://m.media-amazon.com/images/I/41LcFZfx9+L.jpg) ## Questions & Answers **Q: I can buy this exact same product at Petco for $8.50. Why is it so expensive here???** A: Amazon is always a bit more expensive. **Q: Is a cap full too much for a 3 gallon tank?** A: YES!!!!!......I would use only 1/4 cap full....One cap full treats 50 gallon tank... ## Frequently Bought Together - Seachem Laboratories Prime - 325mL - Seachem Clarity 500ml --- ## 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.jp/products/48995771-seachem-prime-325ml-aquarium-water-conditioner-fish-tank-maintenance-aquarium](https://www.desertcart.jp/products/48995771-seachem-prime-325ml-aquarium-water-conditioner-fish-tank-maintenance-aquarium) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-16*