--- product_id: 359333887 title: "API Aqua Essential 237 ml" brand: "api" price: "β‚©27726" currency: KRW in_stock: true reviews_count: 13 category: "Api" url: https://www.desertcart.kr/products/359333887-api-aqua-essential-237-ml store_origin: KR region: South Korea --- # Instantly neutralizes harmful chemicals Treats up to 2,370 gallons of aquarium water 237 ml ultra-concentrated formula API Aqua Essential 237 ml **Brand:** api **Price:** β‚©27726 **Availability:** βœ… In Stock ## Summary > 🐟 Transform your tank instantly β€” because your fish deserve the best! ## Quick Answers - **What is this?** API Aqua Essential 237 ml by api - **How much does it cost?** β‚©27726 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/359333887-api-aqua-essential-237-ml) ## Best For - api enthusiasts ## Why This Product - Trusted api brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Trusted by Experts:** Highly rated with 4.7 stars and praised by fish keepers with over 40 years of experience. - β€’ **Instant Water Detox:** Neutralizes chlorine, chloramines & heavy metals on contact for a safer aquatic environment. - β€’ **Nitrate & Nitrite Defense:** Suppresses harmful nitrites and nitrates, preventing fish suffocation and algae overgrowth. - β€’ **Comprehensive Ammonia Control:** Effectively removes toxic ammonia from fish waste and decaying matter to reduce stress and mortality. - β€’ **Universal Aquarium Compatibility:** Safe and effective for freshwater, saltwater, and planted tanksβ€”perfect for all aquatic enthusiasts. ## Overview API Aqua Essential 237 ml is a powerful, highly concentrated water conditioner designed to instantly detoxify aquarium water by removing chlorine, chloramines, heavy metals, ammonia, nitrites, and nitrates. Suitable for freshwater, saltwater, and planted tanks, it treats up to 2,370 gallons, ensuring a healthier, stress-free environment for fish of all life stages. Trusted by thousands of aquarists, it’s a must-have for maintaining vibrant, thriving aquatic ecosystems. ## Description Free delivery and returns on eligible orders. Buy API Aqua Essential 237 ml at desertcart UK. Review: Superb products. - Superb product. API is one of my resources for many of my aquarium essentials. Never had any problem with any of there items. Great value for money, with many products giving you size options for what you need. All products from medicated to water parameters and plant care. These products are made with an ease of understanding for what that purpose is and will help you on your fish keeping journey. Review: Water Conditioner. - I have a 100 liter aquarium with turtles. This water conditioner has become the best for me of all those that I have bought before. I do a water change once a week, with this water conditioner even after a week the tests show that the water parameters are normal. Although I have used various other water conditioners before, recently I have been using AquaSafe and NitrateMinus, but after a week the tests showed an increase in nitrates. I am very happy with this water conditioner, I definitely recommend it. ## Features - Causes serious eye damage. - Causes skin irritation. - May cause an allergic skin reaction. - Contains one (1) API AQUA ESSENTIAL Water Conditioner 237ml bottle, treats up to 2,370 U.S. Gallons (8,971 Litres) - WORKS INSTANTLY: Highly concentrated aquarium treatment works instantly to remove harmful chemicals, making tap water safe for fish in freshwater, saltwater and planted aquariums, Reduces the risk of fish loss when starting or maintaining a fish tank - DECHLORINATOR: Removes chlorine, chloramines, heavy metals which are found in tap water and can cause gill and tissue damage, breathing difficulty, stress and fish death - AMMONIA REMOVER: Removes the toxic ammonia continually released by fish through their gills, urine and solid waste. Uneaten food and decaying organic matter also add ammonia. Small amounts of ammonia stress fish, large amounts of ammonia will kill fish - NITRITES AND NITRATES REMOVER: Produced by fish waste and uneaten fish food, nitrites inhibit respiration and suppress the immune system at low levels, while high levels cause suffocation, Nitrates can be harmful to fish and lead to algae growth ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B096N5X5Z9 | | Allergen Information | Allergen-Free | | Best Sellers Rank | 2,404 in Pet Supplies ( See Top 100 in Pet Supplies ) 18 in Aquarium Water Treatments | | Brand Name | API | | Country Of Origin | USA | | Customer Reviews | 4.7 4.7 out of 5 stars (3,949) | | Included Components | Contains one (1) API AQUA ESSENTIAL Water Conditioner 237ml bottle, treats up to 2,370 U.S. Gallons (8,971 Litres) | | Item Form | Liquid | | Item Type Name | Water Treatment | | Item Weight | 317.51 Grams | | Liquid Volume | 237 Millilitres | | Manufacturer | API | | Manufacturer Part Number | 423D | | Model Number | 423D | | Product Warranty | 2 year manufacturer | | Target Species | Fish | | UPC | 317163044230 | | Unit Count | 1 count | ## Product Details - **Brand:** API - **Item form:** Liquid - **Item weight:** 317.51 Grams - **Liquid volume:** 237 Millilitres - **Unit count:** 1 count ## Images ![API Aqua Essential 237 ml - Image 1](https://m.media-amazon.com/images/I/51Z9pKX7R2L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: How much would i use for a 12l tank?** A: Use the instructions on the bottle and you won't have any problems. **Q: Is this better than api stress coat?** A: Hi , not sure which is better for getting rid of chlorine and heavy metals , probably the same for that but the stress coat also helps the fish not stress so much and also helps fishes scales to heal better, essential tho also helps to keep any ammonia, nitrite away and also keeps nitrates down so really depends what you are wanting to use it for, πŸ‘ **Q: Does this product prevent algae growth too?** A: No, it doesn't **Q: How much would i need to add to a 100l tank? (uk)** A: 2.6mls. It is 1ml per 38 litres ## Customer Reviews ### ⭐⭐⭐⭐⭐ Superb products. *by M***S on 23 February 2026* Superb product. API is one of my resources for many of my aquarium essentials. Never had any problem with any of there items. Great value for money, with many products giving you size options for what you need. All products from medicated to water parameters and plant care. These products are made with an ease of understanding for what that purpose is and will help you on your fish keeping journey. ### ⭐⭐⭐⭐⭐ Water Conditioner. *by N***I on 5 September 2025* I have a 100 liter aquarium with turtles. This water conditioner has become the best for me of all those that I have bought before. I do a water change once a week, with this water conditioner even after a week the tests show that the water parameters are normal. Although I have used various other water conditioners before, recently I have been using AquaSafe and NitrateMinus, but after a week the tests showed an increase in nitrates. I am very happy with this water conditioner, I definitely recommend it. ### ⭐⭐⭐⭐⭐ great support for aquariums *by T***R on 30 January 2026* Ibe always used API products with great sucess. there products work really well and help treat my tap water and keep problems at a minimal. I have 3 tanks that wouldnt survive without this ## Frequently Bought Together - API AQUA ESSENTIAL Water Conditioner 8 ounce bottle - API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle - API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle --- ## 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.kr/products/359333887-api-aqua-essential-237-ml](https://www.desertcart.kr/products/359333887-api-aqua-essential-237-ml) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-28*