SKU: 75835526565

Seachem Flourish Potassium

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Description

Seachem Flourish PotassiumSeachem Flourish Potassium Seachem Flourish Potassium is a highly concentrated potassium supplement for planted aquariums that helps prevent potassium depletion and supports vigorous plant growth. Potassium supplement for the planted aquarium Highly concentrated (50,000 mg L) Does not contain phosphate or nitrate making it ideal for use with Flourish Nitrogen and Flourish Phosphorus Seachem Flourish Potassium contains 50,000 mg L of potassium suitable

Seachem Flourish Potassium

Seachem Flourish Potassium is a highly concentrated potassium supplement for planted aquariums that helps prevent potassium depletion and supports vigorous plant growth.

  • Potassium supplement for the planted aquarium
  • Highly concentrated (50,000 mg/L)
  • Does not contain phosphate or nitrate making it ideal for use with Flourish Nitrogen and Flourish Phosphorus

Seachem Flourish Potassium contains 50,000 mg/L of potassium suitable for the natural planted 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 (signs of which include yellowing in older leaves) and maintain the highest level of growth.

Why It's Different

The most easily obtained sources of potassium are potassium nitrate and potassium phosphate. Both of these sources add to either nitrogen or phosphorus as well as potassium, making it virtually impossible to target a specific NPK ratio. Flourish Potassium™ is derived from potassium sulfate, allowing the user to adjust potassium levels without affecting nitrogen or phosphorus.

Directions

Use 1 capful (5 mL) for every 125 L (30 gallons*). This dose raises potassium by 2 mg/L. Repeat 2–3 times per week or as needed (in response to signs of potassium deficiency in older leaves which include: chlorosis (yellowing), necrosis (death/browning), and weak stems and roots.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 75835526565

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4.2 ★★★★★
Based on 25 reviews
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JENNA F.
Belleville, US
★★★★★ 3
Smaller than it looks!
Size: 5.75 inch (Pack of 1), Size: 5.75 inch (Pack of 1)
Very very very tiny! I guess they make a larger one I wanted to replace if and this is like 2 inches long haha. I'll give it to my parents Toy poodle. For the price. ..rip off
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Reviewed in the United States on March 23, 2026
B
Verified Purchase
Beans
Port Orchard, US
★★★★★ 5
Hours of entertainment
Size: 5.75 inch (Pack of 1)
I lived this branch bone for my pups. They like to carry it around and chew on it for hours. Not only does it look cute when they walk around with the branch in their mouth but it keeps them entertained and no mess. Not heavy but I wouldn't suggest throwing it, it would still hurt a bit if it hits one of your shins 😅. Long lasting too
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Reviewed in the United States on September 20, 2025
C
Verified Purchase
Charles Knippenberg
West Palm Beach, US
★★★★★ 5
Oh, yes.
Size: 5.75 inch (Pack of 1)
My dog really likes this chew.
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Reviewed in the United States on May 24, 2026
M
Verified Purchase
Miranda Bensch
Chelsea, US
★★★★★ 5
They actually last!!!!
Size: 9.5 inch (Pack of 1)
My pitties are CHEWERS!! Most toys don’t last more than a few minutes, if they’re decent then maybe a day or two but these sticks are still going strong!! I ended up getting more cause I was so happy they actually lasted and you can’t beat the price!! My older male is a lot more into toys than my female but now we got a 4 month old bully pup who’s teething and tries to chew on everything!! They are slightly big for him as of right now but he can still easily chew on them and is growing fast -it’s more him trying to run with it in his mouth that is a little hard but they do have smaller options - I love that they can just chew on these for hours and hardly make a dent! If you have aggressive chewers these are a great buy!!
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Reviewed in the United States on March 23, 2024
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Becky L
West Palm Beach, US
★★★★★ 5
Great Product!
Size: 5.75 inch (Pack of 1)
My dog is a chewer! She can chew through most chew toys in a day. This has been a lifesaver! She chews on it but has not been able to get any pieces off of it. It is Durable and she loves it! This is a great item. I intend to buy more like this. It is a great product!
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Reviewed in the United States on June 3, 2026

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