--- product_id: 739537756 title: "Seachem Prime 500ml by Seachem" brand: "seachem" price: "£6123.39" currency: GBP in_stock: true reviews_count: 5 url: https://www.desertcart.co.uk/products/739537756-seachem-prime-500ml-by-seachem store_origin: GB region: United Kingdom --- # Promotes natural slime coat 500ml concentrated liquid Detoxifies heavy metals Seachem Prime 500ml by Seachem **Brand:** seachem **Price:** £6123.39 **Availability:** ✅ In Stock ## Summary > 🐟 Keep your aquarium thriving with every drop! ## Quick Answers - **What is this?** Seachem Prime 500ml by Seachem by seachem - **How much does it cost?** £6123.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/739537756-seachem-prime-500ml-by-seachem) ## 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 - • **Trusted by Thousands:** 4.8-star rating from over 21,000 aquarists worldwide - • **Ultimate Water Detox:** Neutralizes chlorine & heavy metals for a safer aquatic environment - • **Fish Wellness Booster:** Enhances natural slime coat to keep your fish vibrant and healthy - • **Concentrated Efficiency:** 500ml bottle lasts longer, delivering more value per drop - • **Protein Skimmer Friendly:** Won't overactivate skimmers, ensuring stable filtration ## Overview Seachem Prime 500ml is a premium liquid water conditioner that effectively removes chlorine and detoxifies heavy metals, promoting a healthy, natural slime coat for fish. Its concentrated formula ensures economical use without interfering with protein skimmers, making it a trusted choice for over 21,000 satisfied customers globally. ## Description Product description Dechlorinates;Detoxifies heavy metals;Promotes natural slime coat;Economical;Will not overactivate protein skimmers Directions Add to water Review: Produit toujours au top pour mon aquarium, jamais eu de soucis et flacon qui dure souvent plus que les autres car moins dilué avec de l'eau que certaines autres marques. Review: Excelente ## Features - Seachem Prime 500ml - 500 MILLILITER ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00025694O | | Brand Name | Seachem | | Customer Reviews | 4.8 4.8 out of 5 stars (21,599) | | Global Trade Identification Number | 00000116043304 | | Item Form | Liquid | | Item Weight | 0.6 Kilograms | | Liquid Volume | 500 Milliliters | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer Part Number | 075220 | | Model Number | 67104330 | | Target Species | Fish | | UPC | 701485546228 707005178788 611102106516 000116043304 | | Unit Count | 1 Count | ## Product Details - **Brand:** Seachem - **Item Form:** Liquid - **Item Weight:** 0.6 Kilograms - **Liquid Volume:** 500 Milliliters - **Unit Count:** 1 Count ## Images ![Seachem Prime 500ml by Seachem - Image 1](https://m.media-amazon.com/images/I/71k+2wVR8RL.jpg) ![Seachem Prime 500ml by Seachem - Image 2](https://m.media-amazon.com/images/I/71Ab2lAsrKL.jpg) ![Seachem Prime 500ml by Seachem - Image 3](https://m.media-amazon.com/images/I/818XhtmBS-L.jpg) ![Seachem Prime 500ml by Seachem - Image 4](https://m.media-amazon.com/images/I/91ElptHhL2L.jpg) ![Seachem Prime 500ml by Seachem - Image 5](https://m.media-amazon.com/images/I/81KUw5NtI+L.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by C***N on November 19, 2020* Produit toujours au top pour mon aquarium, jamais eu de soucis et flacon qui dure souvent plus que les autres car moins dilué avec de l'eau que certaines autres marques. ### ⭐⭐⭐⭐⭐ Review *by F***A on April 18, 2026* Excelente ### ⭐⭐⭐⭐⭐ Review *by A***6 on January 30, 2017* Excellent product, does the job much more efficiently compared to other competitive brands. I was previously using similar water conditioners from few other reputed brands, lost a few fishes over a period of time and some were just not feeling well (darkened colours and swimming on the surface) after regular water changes. Since I used this, I feel I've saved a few fishes from death, they are happy and very lively. ## Frequently Bought Together - Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 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.co.uk/products/739537756-seachem-prime-500ml-by-seachem](https://www.desertcart.co.uk/products/739537756-seachem-prime-500ml-by-seachem) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*