Last updated at 12/05/2026 03:49:23
Seachem Flourish Potassium (SC465)
Delivery $7.99
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seachem Flourish Potassium 100ml
Seachem Flourish Potassium 100ml
Delivery between 14–21 May $9.50
Seachem Flourish Potassium 100ml - IWAquariums
Delivery $9.90
Seachem Flourish Potassium 100ml
Delivery between 20–21 May $10.91
1 100ml
Seachem Flourish Potassium 100ml
Free delivery between 15–22 May
Seachem Flourish Potassium 100ml (SC465)
Delivery $19.99
Seachem Flourish Potassium 100ml (SC465)
Delivery $10
Seachem Flourish Potassium 100ml (SC465)
Delivery $24.99
originally posted on shopee.sg
Appearance:goodQuality:goodSuitability:goodTrace elements good for floating plants. Getting second bottle as first bottle is finishing soon.
originally posted on shopee.sg
Appearance:goodQuality:goodSuitability:goodFast delivery from this shop as always.
originally posted on indiefur.com
It's the best potassium for Aquatic plant. Using this for last 2 years & it works like magic. Thanks Indiefur.
Seachem Flourish Potassium (SC465)
Delivery $7.99
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seachem Flourish Potassium 100ml
Seachem Flourish Potassium 100ml
Delivery between 14–21 May $9.50
Seachem Flourish Potassium 100ml - IWAquariums
Delivery $9.90
Seachem Flourish Potassium 100ml
Delivery between 20–21 May $10.91
Appearance:goodQuality:goodSuitability:goodTrace elements good for floating plants. Getting second bottle as first bottle is finishing soon.
Appearance:goodQuality:goodSuitability:goodFast delivery from this shop as always.
It's the best potassium for Aquatic plant. Using this for last 2 years & it works like magic. Thanks Indiefur.
After viewing a lot of You tube videos that warned me that potassium deficiency was a frequent problem in the planted aquarium, I decided that it would be a good to have a good potassium supplement on hand just in case. Since I was already using Seachem's Flourish and Flourish Excel with good results, it made good sense to me to use the same brand for my supplemental foods. I ordered a bottle of iron and a bottle of potassium last Sunday, and to my surprise it arrived on Tuesday afternoon. When they said fast and free shipping, they meant it. I haven't been using it long enough to judge the effect on my plants, but it is a brand I trust and I assume that the effect will be the usual one from potassium feeding. you do not feed potassium to make your plants grow ... MoreAfter viewing a lot of You tube videos that warned me that potassium deficiency was a frequent problem in the planted aquarium, I decided that it would be a good to have a good potassium supplement on hand just in case. Since I was already using Seachem's Flourish and Flourish Excel with good results, it made good sense to me to use the same brand for my supplemental foods. I ordered a bottle of iron and a bottle of potassium last Sunday, and to my surprise it arrived on Tuesday afternoon. When they said fast and free shipping, they meant it. I haven't been using it long enough to judge the effect on my plants, but it is a brand I trust and I assume that the effect will be the usual one from potassium feeding. you do not feed potassium to make your plants grow faster or taller. Potassium makes plants stockier and thicker and helps plants mature and flower.
Seachem Flourish Potassium 100ml
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. 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 US 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), pinholes in leaves, and weak stems and roots.
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. 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 US 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), pinholes in leaves, and weak stems and roots.
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. 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 US 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), pinholes in leaves, and weak stems and roots.
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. 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 US 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), pinholes in leaves, and weak stems and roots.
in 17 offers
The lowest price for Seachem Flourish Potassium 100ml right now is $9.00 at aquateesfishland.com.au, compared across 17 retailers.
The all-time low was $8.10 on 5 Dec 2025 — today's price is 11% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 12 May 2026.
