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Seachem Flourish Potassium 500ml

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$13.83

$ 6 .99 $6.99

In Stock

About this item

  • Potassium supplement
  • For planted aquariums
  • Contains no phosphate or nitrate


Sachem Flourish Potassium contains 50,000 mg/L of potassium suitable for the natural freshwater aquarium. Potassium is one of several elements that are vitally important to maintaining a vigorous level of growth in a planted aquarium. Potassium can become depleted in a rapidly growing system or when the source water has a low mineral content. In these cases potassium could become the limiting factor to growth. Use Flourish Potassium to prevent potassium depletion and maintain the highest level of growth. Flourish Potassium is an integral component of Sachem's plant products and is recommended for use with the entire Flourish line as well as our Fluorite gravel. Contains no phosphate or nitrate.


Easy to install works great
Reviewed in the United States on March 21, 2025
Works as said great value
Teresa martinez
Reviewed in the United States on January 11, 2025
Received in timely manner. I got what I was suppose.
TL
Reviewed in France on September 3, 2024
J'avais remarqué un manque de potassium dans mon eau maintenant que je l'ai mis mes plantes sont magnifiques je recommande ce produit !!
Sophie
Reviewed in the United States on June 28, 2024
This helped fix my yellowing Anubias. It works! Good product.
Fatima
Reviewed in the United States on November 15, 2024
I read the size wrong and didn’t expect the bottle to be that big but I have no complaints. My plans seem a little more full so far, but I’m not too sure whether I really needed to buy this. Try it though, it may work for you. You never know.
Peterson lopes rosa
Reviewed in Brazil on July 14, 2023
Chegou certinho
JenRic
Reviewed in the United States on December 11, 2023
Works as describe. Plants are thriving!
Cliente
Reviewed in Spain on January 27, 2023
Buen producto, marca muy fiable
Cory Saarinen
Reviewed in the United Kingdom on July 31, 2022
Bottle has leaked before I got it
عبدالله احمد محمد
Reviewed in the United Arab Emirates on June 15, 2021
عند وصول المنتج كانت درجة حرارته مرتفه بسبب سوء التخزين ،السوال الن تضر الحراره بكفائة المنتج
Pablo
Reviewed in the United States on July 20, 2016
I use a little less than half recommended bottle dosage every day of all seachem ferts (rotate days between trace and flourish complete). Also use online co2 calculator and use just below dose of co2 tank from 5 am to 5pm. Then I air stone at night. Slightly underused recommended fish food once or twice a day. I take no days off. 2/3rd water change and vacuum every 10 days. Perfect numbers and very slow minimal acceptable algae growth on walls to be hardly visibly noticeable. I created my own HOB power filter and pre-filter using a number of materials from amazon sources. I only clean the sponges and not the physical media, squeeze them out in the throw out water that comes out during water change. Aquarium maintenance 101 from a newbie. Use as little substrate as possible to keep plants alive to more easily avoid snails. Clean literally everything before putting into aquarium, better for it to die before going in aquarium than to introduce snails. Scrape the walls of algae at each waterchange.If you get snails, take literally everything out but fish and inverts, and soak it in a low ratio bleach plus water bath for like 20 minutes, this is the only way to kill all pest snails literally. Drain the water to just enough for the fish and inverts to swim and live, then scrub the entire aquarium with a scraper and take out literally anything you can see. Scrape again 3 times. Wipe it all down and make sure all there is you can see is the fish and inverts and clear water. Then wipe again.Add plenty of cycling bacteria from multiple sources you can find on amazon including seachem. Refill the aquarium with the bleach soaked plants decorations subtrate and filter medias. MAKE SURE YOU SOAK IN PLENTY OF DECHLORINATOR AND WATER FOR 20 MINUTES first. None of your plants should die off completely but they will lose and have killed a good amount of their leaves and roots but they should survive and regrow if you fert and change new water and quick cycle with added bacteriaI truly hope this helps. My first year with a fully stocked nano tank has been a lot of time reading and experimenting. The pest snail battle was epic but I've been free for 6 months completely. I win. Oh and didn't lose a fish or invert and plants are beyond original growth. This is with having done zero quarantining or adapting at any point. I also cycled from day one, no precycling.Use a 24 hour light with cycling phases and full K spectrum for plants. It is way easier and effective and worth the minor price increase over standard lights. And it is funAlso add Indian leaves and a UV filterFilter floss = crystal clear water. Chemical filtration is entirely unnecessaryHave had no issues and made zero adjustments in six months everything has been clear and clean, green growth strong, living things have thrived.Electric heater w built in temperature control at 82 degrees for tropical fish and plants
Ribeag
Reviewed in the United States on June 8, 2016
Good stuff. Easy to dose. This is one of the macro nutrients that plants need in a planted aquarium. They suggest using 5ml or one cap for every 30 gallons 2-3 times per week. So assuming you have a 30 gallon and you dose 3 times per week, this bottle could last you over half a year. The Seachem fertilizers are a bit watered down but are a great and really easy way of getting into fertilizing. After a while you will start to research and want to dose dry fertilizers to save money and be more effective. if you are not sure what nutrients your aquairum is missing, it would be save to just dose the 3 macros, nitrogen, potassium and phosphorous. then do your water change once a week. You should notice a difference in doing this. signs that you need this specific nutrient are yellowing, browning, or pinholes in your leaves. If you are just getting into planted aquarium and have a fairly small tank, 55 gallons or less. I would suggest these then move into dry fertilizers. If you have a larger tank, it may get a bit expensive to dose these, you may want to look elsewhere for dry fertilizers.
J Le
Reviewed in the United States on August 6, 2015
Seachem products are very helpful and essential to planted fish tanks for a variety of reasons. If you are just beginning to venture into a live planted aquarium, these are great products to dose. With that being said, you do have to use caution to not over do it. If you are researching this product, let me tell you why and how they work to help you make up your mind:1. Using the proper doses of seachem products together help your plants grow firm, tall, and gain the beautiful glow they need.2. Natural algae block!!! A common problem in planted aquariums is algae. Proper dosage of these products provide your plants with nutrients that are designed to be readily absorbed by your plants before algae can get it. Plants and algae compete in the aquarium for nutrients and proper use of seachem products will give your plants a jump start to suck up the nutrients before algae will get to it and grow.3. Plants are a great natural filter for your aquarium and if you have fish that breed, the rapid growth will allow your fish great coverage and hiding areas to either lay eggs or have their babies.The list goes on and on about why these products do work well, but you have to remember to get everything together for a good planted aquarium to work. Seachem is wonderful enough to provide dosing regimens on their website. I successfully used it as a guide and tweaked it to what my plants needed.
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