Potassium (K) is a major seawater element essential for coral colouration, tissue vitality, and polyp extension—especially in SPS and LPS systems. It plays a significant role in maintaining ion balance within coral tissue and supporting zooxanthellae function, making it one of the most visibly impactful trace elements when levels become depleted.

Low potassium is commonly observed in ICP tests from SPS-dominant or ultra-low nutrient systems (ULNS), and may result in faded pinks, purples and blues in Acropora, washed-out LPS tones, or weak polyp extension in various corals, including certain mushroom species. Restoring and maintaining potassium levels within natural seawater ranges can support stronger tissue tone, improved coral vibrancy and healthier overall response.

Why Potassium Matters

• Supports coral coloration, especially in SPS such as Acropora and Montipora

• Helps maintain tissue tone and vitality in LPS and soft corals

• Involved in cellular ion exchange and coral metabolic balance

• Frequently depleted in ULNS systems and coral-dense environments

• Commonly corrected and monitored as part of ICP-guided dosing routines

Dosing Guidance

Oceamo Single Element Potassium provides a precise and controlled dosing strength:

• 1 ml / 100 L = +1.5 mg/L (ppm)

• Maximum recommended increase: +6 mg/L per day (4 ml / 100 L)

Dosing should always be governed by ICP results and adjusted gradually to avoid overshooting target ranges.

Why Choose Oceamo Potassium

• High-capacity 1 L format ideal for systems requiring regular correction

• Suited for long-term potassium stability in SPS/LPS and trace-managed systems

• Pharmaceutical-grade purity, laboratory-produced and batch-tested in Oceamo’s Austrian facility

• Delivers consistent, repeatable dosing for confident ICP corrective and maintenance use

• Trusted by reefkeepers who prioritise colour consistency, coral vitality, and analytical dosing precision

When coral colour and vitality matter, Oceamo delivers potassium with purity, accuracy and long-term dosing value.

RRP £24.99 | 1 L
Available in the UK from Reef Quest and authorised Oceamo resellers.

Frequently Asked Questions

1. What are signs of low potassium in reef tanks?
   Faded SPS colours (especially pinks, purples, blues), dull LPS tones, and reduced polyp extension are commonly reported in ICP-confirmed low potassium conditions.

2. How often should I dose potassium?
   Only dose according to ICP results. In actively growing SPS systems, ongoing correction may be necessary to maintain stability.

3. Can potassium be overdosed?
   Yes — excessively high levels may stress corals or cause tissue issues. Always adjust slowly and within ICP-recommended limits.