Seachem Flourish Potassium 500ml

SKU: 26405
Stock: Limited Stock
$29.95  Inc. GST

Seachem Flourish Potassium is a concentrated potassium supplement designed to prevent potassium deficiency in freshwater planted aquariums.

Click and Collect Click & Collect also available from our Adelaide store. Usually ready on the same day.
Australia delivery only

Seachem Flourish Potassium is a highly concentrated potassium supplement designed to address potassium deficiencies in freshwater planted aquariums. This targeted formula provides essential potassium in a readily available form, promoting healthy plant growth and preventing potassium-related issues.


  • Pure Potassium Source: Contains a high concentration of potassium (K+) to effectively address deficiencies and meet the needs of aquatic plants.
  • Prevents Potassium Depletion: Rapidly growing plants and low-mineral source water can deplete potassium levels. Seachem Flourish Potassium replenishes essential potassium to avoid stunted growth and other deficiency symptoms.
  • Promotes Healthy Plant Function: Potassium plays a vital role in various plant processes, including photosynthesis, enzyme activity, and overall plant health.
  • Safe for Fish and Invertebrates: When used as directed, Seachem Flourish Potassium is non-toxic and safe for fish, shrimp, snails, and other aquarium inhabitants.
  • Easy-to-Use Liquid: Simply add the recommended dosage to your aquarium water on a regular basis.


  • Prevents Potassium Deficiency: Provides essential potassium for optimal plant development, preventing stunted growth, weak stems, and chlorotic leaves.
  • Supports Plant Functioning: Contributes to healthy plant metabolism, enzyme activity, and overall plant health.

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 of water has a low mineral content. In these cases Potassium could become the limiting factor in growth.

Use Flourish Potassium to prevent depletion (signs in which include yellowing leaves) and maintain the highest level of growth.

Note: While unlikely, overdosing potassium can be harmful. Monitor potassium levels and adjust the dosage accordingly.