Seachem Flourish Nitrogen 500ml

(124 Reviews)

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$17.49

Quantity
(10000 available )

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42 Ratings
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Reviews
  • jessica dawn ignle

    Greater than one week

    Plant food. 5ml = 10ppm per 10 gallons

  • Andy

    Greater than one week

    I trust this brand

  • Phat Daddy

    > 3 day

    Its easy to be successful with planted tanks using Seachem Flourish products. Safe with my shrimp too.

  • Ponson416

    > 3 day

    I have a large tank with a lot of plants, but not much stock. My tap water is high in phosphates, so I use this to balance out the water properties. Keeps cyano away, plants are healthy and growing. no complaints here. I use a lot of seachems products. Never had a problem with any of their products. As long as you know how to use them.

  • Terry L. Robinson

    Greater than one week

    Beware!!!...use with caution!!! With a heavily planted and stocked tank, i decided to give this product a try. I dosed according to the beginners dose with all parameters wnl (weekly water change earlier), putting it in the tank before bed....my bad on that (perhaps i should have dosed during day with lights on) because i woke with 2 dead parrot fish, 1 ghost knife, 1 chinese algae eater and 1 black skirt!!!!! A quick water check revealed nitrates off the chart!!!!....lesson learned: leave this product alone (for me)

  • Miss Desiree Casper Jr.

    > 3 day

    This product may work. but the bottle is basically just water. The only good thing from this company is prime Alternative solutions like Thrive all in one fertilizer is much more concentrated and convenient . Check your self with rotalabutterfly.com/nutrient-calculator.php

  • Andy

    > 3 day

    it will raise you nitrite level so be careful of how much and how often you use you can kill your fish with this

  • John S. Kret

    > 3 day

    Does the job. Plants never looked better.

  • JAF

    > 3 day

    Great product! If you have a planted aquarium, this product is a must. Easy to follow instructions for beginners. Seachem also has a dosing calculator on their website, as well as a suggested weekly chart for dosing your aquarium. Great for beginners and pros.

  • Save Conures

    07-06-2025

    Love the whole Flourish line. This and the others keep my plants in my tanks healthy and thriving. My plants say thank you

Nitrogen is one of the main three macro nutrients (nitrogen, phosphorus, potassium: npk) required by plants and can often become the limiting factor to growth in a flourishing system. Flourish nitrogen is a concentrated (15, 000 mg/L) blend of nitrogen sources. It provides nitrogen in both the nitrate form and the preferred ammonium form. However, no free ammonia is released because the ammonium in flourish nitrogen is complexed and unavailable until utilized by the plants. Ammonium becomes available after conversion of urea (carbamide). flourish nitrogen also provides nitrate for those plants that can readily utilize nitrate as well. For Maximum benefit, use with flourish Phosphorus and flourish Potassium. Flourish nitrogen is safe for invertebrates such as shrimp.

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