--- product_id: 76372598 title: "API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle | Freshwater and Saltwater Aquarium, Water Treatment" brand: "api" price: "€ 35.86" currency: EUR in_stock: true reviews_count: 13 category: "Api" url: https://www.desertcart.hr/products/76372598-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-4 store_origin: HR region: Croatia --- # Instant fish addition Fresh & saltwater safe Live nitrifying bacteria API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle | Freshwater and Saltwater Aquarium, Water Treatment **Brand:** api **Price:** € 35.86 **Availability:** ✅ In Stock ## Summary > 🐠 Jumpstart your aquarium’s ecosystem—because your fish deserve the best first impression! ## Quick Answers - **What is this?** API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle | Freshwater and Saltwater Aquarium, Water Treatment by api - **How much does it cost?** € 35.86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/76372598-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-4) ## 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 - • **All-Natural & Safe 🌿:** Eco-friendly ingredients ensure a healthy environment for your aquatic life. - • **Instant Fish Addition ⚡:** Start your aquarium with fish immediately—no waiting required. - • **No Refrigeration Needed 🧊:** Convenient storage and ready-to-use anytime without special care. - • **Scientifically Proven Live Bacteria 🧬:** Rapidly consumes harmful ammonia and nitrite to prevent new tank syndrome. - • **Dual Fresh & Saltwater Compatibility 🌊:** Versatile formula works seamlessly in both freshwater and saltwater tanks. ## Overview API Quick Start is a 4-ounce liquid treatment containing live nitrifying bacteria that instantly establishes biological filtration in both freshwater and saltwater aquariums. It enables immediate fish addition by rapidly reducing toxic ammonia and nitrite levels, preventing new tank syndrome and fish loss. The all-natural formula requires no refrigeration, making it a convenient and essential starter for any new or cycling aquarium. ## Description In a new aquarium, harmful ammonia and nitrite build up from fish waste, often resulting in fish loss or new tank syndrome. The unique, patented nitrifying bacteria in QUICK START are scientifically proven to quickly consume ammonia and nitrite to help prevent new tank syndrome. Allows immediate addition of fish to a new freshwater or saltwater aquarium. Use when starting a new aquarium, adding new fish, changing water, changing filter media, after medicating , or whenever ammonia or nitrite are detected. Allows instant addition of fish. Limits toxic ammonia and nitrite. Helps prevent fish loss. Immediately starts aquarium cycle. Contains live, nitrifying bacteria. No refrigeration required. All natural. Review: Know your water chemistry - Very good but know your water chemistry and what you want to achieve. Review: Good product - Good product to start new tank ## Features - Complete Package: Contains one (1) API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle (118 ML) - Instant Fish Addition: Allows immediate addition of fish when starting a new aquarium - Harmful Compound Reduction: Reduces compounds harmful to fish when used routinely - Fish Loss Prevention: Helps prevent fish loss in freshwater and saltwater aquariums - Versatile Application: Use when starting a new aquarium, when adding new fish and when changing water and filter media - Live Nitrifying Bacteria: Contains scientifically proven live bacteria that quickly consume ammonia and nitrite to prevent new tank syndrome - Convenient Storage: No refrigeration required, making it easy to store and use whenever needed - Aquarium Cycle Starter: Immediately starts the aquarium cycle to establish a healthy biological filtration system - All Natural Formula: Made with all natural ingredients to safely treat both freshwater and saltwater aquariums ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006YG1ZLC | | Best Sellers Rank | #6,986 in Pet Supplies ( See Top 100 in Pet Supplies ) #124 in Water Treatments | | Brand | API | | Brand Name | API | | Customer Reviews | 4.7 out of 5 stars 2,732 Reviews | | Global Trade Identification Number | 00317163030899 | | Item Form | Liquid | | Item Weight | 0.3 Pounds | | Liquid Volume | 118 Millilitres | | Manufacturer | Aquarium Pharmaceuticals | | Manufacturer Part Number | 89C | | Model Number | 89C | | Net Quantity | 118 Milliliters | | Target Species | Fish | | UPC | 317163030899 | | Unit Count | 118 Milliliters | | country-of-origin | USA | ## Product Details - **Brand:** API - **Item Form:** Liquid - **Item Weight:** 136 g - **Liquid Volume:** 118 Millilitres - **Manufacturer:** Aquarium Pharmaceuticals ## Images ![API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle | Freshwater and Saltwater Aquarium, Water Treatment - Image 1](https://m.media-amazon.com/images/I/71RL8D-+cxL.jpg) ![API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle | Freshwater and Saltwater Aquarium, Water Treatment - Image 2](https://m.media-amazon.com/images/I/A1KBUhgj1SL.jpg) ![API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle | Freshwater and Saltwater Aquarium, Water Treatment - Image 3](https://m.media-amazon.com/images/I/91Ebqzs9UAL.jpg) ![API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle | Freshwater and Saltwater Aquarium, Water Treatment - Image 4](https://m.media-amazon.com/images/I/81Lf0ZtO2aL.jpg) ![API Quick Start Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle | Freshwater and Saltwater Aquarium, Water Treatment - Image 5](https://m.media-amazon.com/images/I/81SfKyxbXJL.jpg) ## Questions & Answers **Q: Can i use this product my biofloc system???** A: yes **Q: I have set up a 20 litre aquarium with single betta fish using underground water.. Can I pour this liquid 1-2 days after setting tank..??** A: Yes **Q: Can i use this in aquaponics cycling ?** A: Yes, you can use it ## Customer Reviews ### ⭐⭐⭐⭐⭐ Know your water chemistry *by R***H on 19 February 2026* Very good but know your water chemistry and what you want to achieve. ### ⭐⭐⭐⭐⭐ Good product *by A***D on 11 May 2024* Good product to start new tank ### ⭐⭐⭐⭐⭐ Five Stars *by D***. on 3 September 2018* This product is cool and best for quick adding fish benificial bectiria ## Frequently Bought Together - API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle - API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle - API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle --- ## 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.hr/products/76372598-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-4](https://www.desertcart.hr/products/76372598-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-4) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-21*