--- product_id: 48273406 title: "Seachem Prime Water Conditioner, 250 ml" brand: "seachem" price: "$37.85" currency: USD in_stock: true category: "Seachem" url: https://www.desertcart.us/products/48273406-seachem-prime-water-conditioner-250-ml store_origin: US region: United States of America --- # Safe for fish, plants & invertebrates Concentrated formula treats 40L per 5mL Detoxifies ammonia, nitrite & nitrate Seachem Prime Water Conditioner, 250 ml **Brand:** seachem **Price:** $37.85 **Availability:** βœ… In Stock ## Summary > πŸ’§ Transform your tank water into a crystal-clear haven with Seachem Prime β€” because your aquatic friends deserve the best! ## Quick Answers - **What is this?** Seachem Prime Water Conditioner, 250 ml by seachem - **How much does it cost?** $37.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/48273406-seachem-prime-water-conditioner-250-ml) ## 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 - β€’ **Odorless & Residue-Free:** Leaves no smell or cloudiness, so your aquarium stays pristine and your dosing stays clean and precise. - β€’ **Supports Biofilter Health:** Enhances your tank’s natural filtration by neutralizing toxins, ensuring a thriving aquatic ecosystem. - β€’ **Powerful Multi-Action Formula:** Removes chlorine, chloramine, and detoxifies harmful ammonia and nitrites for crystal-clear, safe water. - β€’ **Ultra-Concentrated Efficiency:** Just 5 mL treats 40 liters, making your 250 mL bottle last through countless water changes. - β€’ **Universal Aquarium Compatibility:** Perfectly safe for freshwater and saltwater setups, including delicate plants and invertebrates. ## Overview Seachem Prime Water Conditioner is a highly concentrated, multi-purpose treatment designed for both freshwater and saltwater aquariums. It effectively removes chlorine and chloramine while detoxifying ammonia, nitrite, and nitrate, ensuring a safe environment for fish, plants, and invertebrates. With a small dose treating up to 40 liters, it supports biofilter health and maintains optimal water quality without odor or residue. Ideal for routine maintenance, emergency detox, and new tank setups. ## Description Product Description Seachem Prime 250Ml Directions For fresh and saltwater: Use 1 capful (5 mL) for each 40 L (10 US gallons) of aquarium water. best results, use daily or every other day. Shake well before use. Do not remove filter media. Safe plants, fish, invertebrates. With treatments containing chlorine chloramine. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains water treatment See more ## Features - Complete and concentrated conditioner for both fresh and saltwater - Removes chlorine, chloramine - Detoxifies ammonia, nitrite, and nitrate - Model number: 020042 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002568S6 | | Allergen Information | Gluten Free | | Best Sellers Rank | 324 in Automotive ( See Top 100 in Automotive ) 8 in Greases & Lubricants | | Brand Name | Seachem | | Country Of Origin | USA | | Customer Reviews | 4.8 4.8 out of 5 stars (36,946) | | Global Trade Identification Number | 00000116043601 | | Included Components | Water conditioner | | Item Form | Liquid | | Item Type Name | Seachem Prime Water Conditioner | | Item Weight | 10.2 Ounces | | Liquid Volume | 250 Millilitres | | Manufacturer | Seachem | | Manufacturer Part Number | 075223 | | Model Number | 67104360 | | Pet Type | Fish | | Product Warranty | 2 years | | Target Species | Fish | | UPC | 634252024745 000116043601 707005178771 | | Unit Count | 250.0 millilitre | ## Product Details - **Brand:** Seachem - **Item form:** Liquid - **Item weight:** 10.2 Ounces - **Liquid volume:** 250 Millilitres - **Number of Packs:** 1 ## Images ![Seachem Prime Water Conditioner, 250 ml - Image 1](https://m.media-amazon.com/images/I/61aPb4rk8cL.jpg) ![Seachem Prime Water Conditioner, 250 ml - Image 2](https://m.media-amazon.com/images/I/81Q5CnYWOkL.jpg) ![Seachem Prime Water Conditioner, 250 ml - Image 3](https://m.media-amazon.com/images/I/61DVJNjihJL.jpg) ![Seachem Prime Water Conditioner, 250 ml - Image 4](https://m.media-amazon.com/images/I/61QTPBg3NNL.jpg) ![Seachem Prime Water Conditioner, 250 ml - Image 5](https://m.media-amazon.com/images/I/71b79qr2yXL.jpg) ## Available Options This product comes in different **Size** 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/48273406-seachem-prime-water-conditioner-250-ml](https://www.desertcart.us/products/48273406-seachem-prime-water-conditioner-250-ml) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*