--- product_id: 9414438 title: "Flourish Nitrogen, 100 mL / 3.4 fl. oz." brand: "seachem" price: "153 kr" currency: DKK in_stock: true reviews_count: 13 url: https://www.desertcart.dk/products/9414438-flourish-nitrogen-100-ml-3-4-fl-oz store_origin: DK region: Denmark --- # Treats up to 5000 gallons Nitrogen-rich formula 100 mL volume Flourish Nitrogen, 100 mL / 3.4 fl. oz. **Brand:** seachem **Price:** 153 kr **Availability:** βœ… In Stock ## Summary > 🌊 Dive into Growth: Elevate Your Aquarium Experience! ## Quick Answers - **What is this?** Flourish Nitrogen, 100 mL / 3.4 fl. oz. by seachem - **How much does it cost?** 153 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/9414438-flourish-nitrogen-100-ml-3-4-fl-oz) ## 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€’ **Concentrated Formula:** A little goes a long way for lush, thriving aquascapes. - β€’ **Macro Nutrient Power:** Nitrogen is a key player in plant health and vitality. - β€’ **Safe for Aquatic Life:** Complexed ammonium ensures no free ammonia release. - β€’ **Versatile Application:** One bottle treats from 500 to 5000 gallonsβ€”perfect for any setup! - β€’ **Unlock Plant Potential:** Boost your aquarium's growth with essential nitrogen! ## Overview Flourish Nitrogen is a concentrated nitrogen supplement designed specifically for planted aquariums. It provides essential nitrogen in both nitrate and ammonium forms, ensuring optimal plant growth without the risk of free ammonia. One 100 mL bottle can treat between 500 to 5000 US gallons, making it a versatile choice for aquarists looking to enhance their aquatic environments. ## Description Flourish Nitrogen, 100 mL / 3.4 fl. oz. ## Features - Nitrogen supplement for the planted aquarium - A concentrated blend of nitrogen sources provided in both the nitrate form and plant preferred ammonium form - Will not release free ammonia because ammonium in Flourish Nitrogen is complexed and unavailable until utilized by plants - Nitrogen is one of the three main macro nutrients required by plants and can often become the limiting factor to growth in a flourishing system - 250 milliliters treats 500 to 5000 US gallons ## Images ![Flourish Nitrogen, 100 mL / 3.4 fl. oz. - Image 1](https://m.media-amazon.com/images/I/515Mh7-hFKL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Useful additive *by E***O on Reviewed in the United States on July 30, 2024* I keep this one in my rotation of chemicals o dose my aquatic plants with. My plants look great. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Seems like it can be used to cycle while feeding the plants effectively *by C***K on Reviewed in the United States on December 16, 2023* This includes nitrates and urea, so I think it will help the nitrogen cycle along as the urea breaks down while also providing the final nitrate product to help keep your aquarium plants alive.I'm trying to keep my old cycle going in a new/upsized 29g tank but currently all I have in it is some nerite snails and a ton of aquarium plants (and hungry emersed houseplants, basil, etc), so I need to add a lot of nutrients to the water AND maintain the cycle until I am happy enough with my tank's maturity to get some fish.Generally I add aquarium ammonia and a little bit of fish food to keep the cycle going, and also feed the plants with Aquarium Coop Easy Green and occasionally some micronutrient Seachem Flourish. The tank is so heavily planted, especially with the emersed plants and the Salvinia, that I struggle to keep the nitrates high enough to feed everything.This Seachem Flourish Nitrogen stuff allows me to directly feed the plants a little more efficiently without overloading the tank with micronutrients. I just repeatedly added a half cap and checked the nitrates an hour or two later until I got it at the level I wanted. Eventually I will figure out a good schedule, which will of course completely change once the tank is stocked, but regardless, this product is a useful tool for planted tanks. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Makes plants grow fast. *by R***N on Reviewed in the United States on April 22, 2023* Makes plants grow fast. But monitor your nitrate level. Too much can be bad for your fish. ## Frequently Bought Together - Seachem Flourish Nitrogen Supplement, 100 ml - Seachem Flourish Potassium Supplement, 100 ml --- ## 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.dk/products/9414438-flourish-nitrogen-100-ml-3-4-fl-oz](https://www.desertcart.dk/products/9414438-flourish-nitrogen-100-ml-3-4-fl-oz) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-27*